MAYBE

Problem:
 active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
 active(__(X,nil())) -> mark(X)
 active(__(nil(),X)) -> mark(X)
 active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
 active(U12(tt(),V)) -> mark(U13(isNeList(V)))
 active(U13(tt())) -> mark(tt())
 active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
 active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
 active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
 active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
 active(U25(tt(),V2)) -> mark(U26(isList(V2)))
 active(U26(tt())) -> mark(tt())
 active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
 active(U32(tt(),V)) -> mark(U33(isQid(V)))
 active(U33(tt())) -> mark(tt())
 active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
 active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
 active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
 active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
 active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
 active(U46(tt())) -> mark(tt())
 active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
 active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
 active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
 active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
 active(U55(tt(),V2)) -> mark(U56(isList(V2)))
 active(U56(tt())) -> mark(tt())
 active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
 active(U62(tt(),V)) -> mark(U63(isQid(V)))
 active(U63(tt())) -> mark(tt())
 active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
 active(U72(tt(),P)) -> mark(U73(isPal(P),P))
 active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
 active(U74(tt())) -> mark(tt())
 active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
 active(U82(tt(),V)) -> mark(U83(isNePal(V)))
 active(U83(tt())) -> mark(tt())
 active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
 active(U92(tt())) -> mark(tt())
 active(isList(V)) -> mark(U11(isPalListKind(V),V))
 active(isList(nil())) -> mark(tt())
 active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
 active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
 active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
 active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
 active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
 active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
 active(isPal(V)) -> mark(U81(isPalListKind(V),V))
 active(isPal(nil())) -> mark(tt())
 active(isPalListKind(a())) -> mark(tt())
 active(isPalListKind(e())) -> mark(tt())
 active(isPalListKind(i())) -> mark(tt())
 active(isPalListKind(nil())) -> mark(tt())
 active(isPalListKind(o())) -> mark(tt())
 active(isPalListKind(u())) -> mark(tt())
 active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
 active(isQid(a())) -> mark(tt())
 active(isQid(e())) -> mark(tt())
 active(isQid(i())) -> mark(tt())
 active(isQid(o())) -> mark(tt())
 active(isQid(u())) -> mark(tt())
 mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
 mark(nil()) -> active(nil())
 mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
 mark(tt()) -> active(tt())
 mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
 mark(isPalListKind(X)) -> active(isPalListKind(X))
 mark(U13(X)) -> active(U13(mark(X)))
 mark(isNeList(X)) -> active(isNeList(X))
 mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
 mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
 mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
 mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
 mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
 mark(isList(X)) -> active(isList(X))
 mark(U26(X)) -> active(U26(mark(X)))
 mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
 mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
 mark(U33(X)) -> active(U33(mark(X)))
 mark(isQid(X)) -> active(isQid(X))
 mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
 mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
 mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
 mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
 mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
 mark(U46(X)) -> active(U46(mark(X)))
 mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
 mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
 mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
 mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
 mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
 mark(U56(X)) -> active(U56(mark(X)))
 mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
 mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
 mark(U63(X)) -> active(U63(mark(X)))
 mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
 mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
 mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
 mark(isPal(X)) -> active(isPal(X))
 mark(U74(X)) -> active(U74(mark(X)))
 mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
 mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
 mark(U83(X)) -> active(U83(mark(X)))
 mark(isNePal(X)) -> active(isNePal(X))
 mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
 mark(U92(X)) -> active(U92(mark(X)))
 mark(a()) -> active(a())
 mark(e()) -> active(e())
 mark(i()) -> active(i())
 mark(o()) -> active(o())
 mark(u()) -> active(u())
 __(mark(X1),X2) -> __(X1,X2)
 __(X1,mark(X2)) -> __(X1,X2)
 __(active(X1),X2) -> __(X1,X2)
 __(X1,active(X2)) -> __(X1,X2)
 U11(mark(X1),X2) -> U11(X1,X2)
 U11(X1,mark(X2)) -> U11(X1,X2)
 U11(active(X1),X2) -> U11(X1,X2)
 U11(X1,active(X2)) -> U11(X1,X2)
 U12(mark(X1),X2) -> U12(X1,X2)
 U12(X1,mark(X2)) -> U12(X1,X2)
 U12(active(X1),X2) -> U12(X1,X2)
 U12(X1,active(X2)) -> U12(X1,X2)
 isPalListKind(mark(X)) -> isPalListKind(X)
 isPalListKind(active(X)) -> isPalListKind(X)
 U13(mark(X)) -> U13(X)
 U13(active(X)) -> U13(X)
 isNeList(mark(X)) -> isNeList(X)
 isNeList(active(X)) -> isNeList(X)
 U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
 U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
 U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
 U21(active(X1),X2,X3) -> U21(X1,X2,X3)
 U21(X1,active(X2),X3) -> U21(X1,X2,X3)
 U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
 U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
 U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
 U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
 U22(active(X1),X2,X3) -> U22(X1,X2,X3)
 U22(X1,active(X2),X3) -> U22(X1,X2,X3)
 U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
 U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
 U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
 U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
 U23(active(X1),X2,X3) -> U23(X1,X2,X3)
 U23(X1,active(X2),X3) -> U23(X1,X2,X3)
 U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
 U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
 U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
 U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
 U24(active(X1),X2,X3) -> U24(X1,X2,X3)
 U24(X1,active(X2),X3) -> U24(X1,X2,X3)
 U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
 U25(mark(X1),X2) -> U25(X1,X2)
 U25(X1,mark(X2)) -> U25(X1,X2)
 U25(active(X1),X2) -> U25(X1,X2)
 U25(X1,active(X2)) -> U25(X1,X2)
 isList(mark(X)) -> isList(X)
 isList(active(X)) -> isList(X)
 U26(mark(X)) -> U26(X)
 U26(active(X)) -> U26(X)
 U31(mark(X1),X2) -> U31(X1,X2)
 U31(X1,mark(X2)) -> U31(X1,X2)
 U31(active(X1),X2) -> U31(X1,X2)
 U31(X1,active(X2)) -> U31(X1,X2)
 U32(mark(X1),X2) -> U32(X1,X2)
 U32(X1,mark(X2)) -> U32(X1,X2)
 U32(active(X1),X2) -> U32(X1,X2)
 U32(X1,active(X2)) -> U32(X1,X2)
 U33(mark(X)) -> U33(X)
 U33(active(X)) -> U33(X)
 isQid(mark(X)) -> isQid(X)
 isQid(active(X)) -> isQid(X)
 U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
 U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
 U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
 U41(active(X1),X2,X3) -> U41(X1,X2,X3)
 U41(X1,active(X2),X3) -> U41(X1,X2,X3)
 U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
 U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
 U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
 U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
 U42(active(X1),X2,X3) -> U42(X1,X2,X3)
 U42(X1,active(X2),X3) -> U42(X1,X2,X3)
 U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
 U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
 U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
 U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
 U43(active(X1),X2,X3) -> U43(X1,X2,X3)
 U43(X1,active(X2),X3) -> U43(X1,X2,X3)
 U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
 U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
 U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
 U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
 U44(active(X1),X2,X3) -> U44(X1,X2,X3)
 U44(X1,active(X2),X3) -> U44(X1,X2,X3)
 U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
 U45(mark(X1),X2) -> U45(X1,X2)
 U45(X1,mark(X2)) -> U45(X1,X2)
 U45(active(X1),X2) -> U45(X1,X2)
 U45(X1,active(X2)) -> U45(X1,X2)
 U46(mark(X)) -> U46(X)
 U46(active(X)) -> U46(X)
 U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
 U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
 U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
 U51(active(X1),X2,X3) -> U51(X1,X2,X3)
 U51(X1,active(X2),X3) -> U51(X1,X2,X3)
 U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
 U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
 U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
 U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
 U52(active(X1),X2,X3) -> U52(X1,X2,X3)
 U52(X1,active(X2),X3) -> U52(X1,X2,X3)
 U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
 U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
 U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
 U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
 U53(active(X1),X2,X3) -> U53(X1,X2,X3)
 U53(X1,active(X2),X3) -> U53(X1,X2,X3)
 U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
 U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
 U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
 U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
 U54(active(X1),X2,X3) -> U54(X1,X2,X3)
 U54(X1,active(X2),X3) -> U54(X1,X2,X3)
 U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
 U55(mark(X1),X2) -> U55(X1,X2)
 U55(X1,mark(X2)) -> U55(X1,X2)
 U55(active(X1),X2) -> U55(X1,X2)
 U55(X1,active(X2)) -> U55(X1,X2)
 U56(mark(X)) -> U56(X)
 U56(active(X)) -> U56(X)
 U61(mark(X1),X2) -> U61(X1,X2)
 U61(X1,mark(X2)) -> U61(X1,X2)
 U61(active(X1),X2) -> U61(X1,X2)
 U61(X1,active(X2)) -> U61(X1,X2)
 U62(mark(X1),X2) -> U62(X1,X2)
 U62(X1,mark(X2)) -> U62(X1,X2)
 U62(active(X1),X2) -> U62(X1,X2)
 U62(X1,active(X2)) -> U62(X1,X2)
 U63(mark(X)) -> U63(X)
 U63(active(X)) -> U63(X)
 U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
 U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
 U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
 U71(active(X1),X2,X3) -> U71(X1,X2,X3)
 U71(X1,active(X2),X3) -> U71(X1,X2,X3)
 U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
 U72(mark(X1),X2) -> U72(X1,X2)
 U72(X1,mark(X2)) -> U72(X1,X2)
 U72(active(X1),X2) -> U72(X1,X2)
 U72(X1,active(X2)) -> U72(X1,X2)
 U73(mark(X1),X2) -> U73(X1,X2)
 U73(X1,mark(X2)) -> U73(X1,X2)
 U73(active(X1),X2) -> U73(X1,X2)
 U73(X1,active(X2)) -> U73(X1,X2)
 isPal(mark(X)) -> isPal(X)
 isPal(active(X)) -> isPal(X)
 U74(mark(X)) -> U74(X)
 U74(active(X)) -> U74(X)
 U81(mark(X1),X2) -> U81(X1,X2)
 U81(X1,mark(X2)) -> U81(X1,X2)
 U81(active(X1),X2) -> U81(X1,X2)
 U81(X1,active(X2)) -> U81(X1,X2)
 U82(mark(X1),X2) -> U82(X1,X2)
 U82(X1,mark(X2)) -> U82(X1,X2)
 U82(active(X1),X2) -> U82(X1,X2)
 U82(X1,active(X2)) -> U82(X1,X2)
 U83(mark(X)) -> U83(X)
 U83(active(X)) -> U83(X)
 isNePal(mark(X)) -> isNePal(X)
 isNePal(active(X)) -> isNePal(X)
 U91(mark(X1),X2) -> U91(X1,X2)
 U91(X1,mark(X2)) -> U91(X1,X2)
 U91(active(X1),X2) -> U91(X1,X2)
 U91(X1,active(X2)) -> U91(X1,X2)
 U92(mark(X)) -> U92(X)
 U92(active(X)) -> U92(X)

Proof:
 DP Processor:
  DPs:
   active#(__(__(X,Y),Z)) -> __#(Y,Z)
   active#(__(__(X,Y),Z)) -> __#(X,__(Y,Z))
   active#(__(__(X,Y),Z)) -> mark#(__(X,__(Y,Z)))
   active#(__(X,nil())) -> mark#(X)
   active#(__(nil(),X)) -> mark#(X)
   active#(U11(tt(),V)) -> isPalListKind#(V)
   active#(U11(tt(),V)) -> U12#(isPalListKind(V),V)
   active#(U11(tt(),V)) -> mark#(U12(isPalListKind(V),V))
   active#(U12(tt(),V)) -> isNeList#(V)
   active#(U12(tt(),V)) -> U13#(isNeList(V))
   active#(U12(tt(),V)) -> mark#(U13(isNeList(V)))
   active#(U13(tt())) -> mark#(tt())
   active#(U21(tt(),V1,V2)) -> isPalListKind#(V1)
   active#(U21(tt(),V1,V2)) -> U22#(isPalListKind(V1),V1,V2)
   active#(U21(tt(),V1,V2)) -> mark#(U22(isPalListKind(V1),V1,V2))
   active#(U22(tt(),V1,V2)) -> isPalListKind#(V2)
   active#(U22(tt(),V1,V2)) -> U23#(isPalListKind(V2),V1,V2)
   active#(U22(tt(),V1,V2)) -> mark#(U23(isPalListKind(V2),V1,V2))
   active#(U23(tt(),V1,V2)) -> isPalListKind#(V2)
   active#(U23(tt(),V1,V2)) -> U24#(isPalListKind(V2),V1,V2)
   active#(U23(tt(),V1,V2)) -> mark#(U24(isPalListKind(V2),V1,V2))
   active#(U24(tt(),V1,V2)) -> isList#(V1)
   active#(U24(tt(),V1,V2)) -> U25#(isList(V1),V2)
   active#(U24(tt(),V1,V2)) -> mark#(U25(isList(V1),V2))
   active#(U25(tt(),V2)) -> isList#(V2)
   active#(U25(tt(),V2)) -> U26#(isList(V2))
   active#(U25(tt(),V2)) -> mark#(U26(isList(V2)))
   active#(U26(tt())) -> mark#(tt())
   active#(U31(tt(),V)) -> isPalListKind#(V)
   active#(U31(tt(),V)) -> U32#(isPalListKind(V),V)
   active#(U31(tt(),V)) -> mark#(U32(isPalListKind(V),V))
   active#(U32(tt(),V)) -> isQid#(V)
   active#(U32(tt(),V)) -> U33#(isQid(V))
   active#(U32(tt(),V)) -> mark#(U33(isQid(V)))
   active#(U33(tt())) -> mark#(tt())
   active#(U41(tt(),V1,V2)) -> isPalListKind#(V1)
   active#(U41(tt(),V1,V2)) -> U42#(isPalListKind(V1),V1,V2)
   active#(U41(tt(),V1,V2)) -> mark#(U42(isPalListKind(V1),V1,V2))
   active#(U42(tt(),V1,V2)) -> isPalListKind#(V2)
   active#(U42(tt(),V1,V2)) -> U43#(isPalListKind(V2),V1,V2)
   active#(U42(tt(),V1,V2)) -> mark#(U43(isPalListKind(V2),V1,V2))
   active#(U43(tt(),V1,V2)) -> isPalListKind#(V2)
   active#(U43(tt(),V1,V2)) -> U44#(isPalListKind(V2),V1,V2)
   active#(U43(tt(),V1,V2)) -> mark#(U44(isPalListKind(V2),V1,V2))
   active#(U44(tt(),V1,V2)) -> isList#(V1)
   active#(U44(tt(),V1,V2)) -> U45#(isList(V1),V2)
   active#(U44(tt(),V1,V2)) -> mark#(U45(isList(V1),V2))
   active#(U45(tt(),V2)) -> isNeList#(V2)
   active#(U45(tt(),V2)) -> U46#(isNeList(V2))
   active#(U45(tt(),V2)) -> mark#(U46(isNeList(V2)))
   active#(U46(tt())) -> mark#(tt())
   active#(U51(tt(),V1,V2)) -> isPalListKind#(V1)
   active#(U51(tt(),V1,V2)) -> U52#(isPalListKind(V1),V1,V2)
   active#(U51(tt(),V1,V2)) -> mark#(U52(isPalListKind(V1),V1,V2))
   active#(U52(tt(),V1,V2)) -> isPalListKind#(V2)
   active#(U52(tt(),V1,V2)) -> U53#(isPalListKind(V2),V1,V2)
   active#(U52(tt(),V1,V2)) -> mark#(U53(isPalListKind(V2),V1,V2))
   active#(U53(tt(),V1,V2)) -> isPalListKind#(V2)
   active#(U53(tt(),V1,V2)) -> U54#(isPalListKind(V2),V1,V2)
   active#(U53(tt(),V1,V2)) -> mark#(U54(isPalListKind(V2),V1,V2))
   active#(U54(tt(),V1,V2)) -> isNeList#(V1)
   active#(U54(tt(),V1,V2)) -> U55#(isNeList(V1),V2)
   active#(U54(tt(),V1,V2)) -> mark#(U55(isNeList(V1),V2))
   active#(U55(tt(),V2)) -> isList#(V2)
   active#(U55(tt(),V2)) -> U56#(isList(V2))
   active#(U55(tt(),V2)) -> mark#(U56(isList(V2)))
   active#(U56(tt())) -> mark#(tt())
   active#(U61(tt(),V)) -> isPalListKind#(V)
   active#(U61(tt(),V)) -> U62#(isPalListKind(V),V)
   active#(U61(tt(),V)) -> mark#(U62(isPalListKind(V),V))
   active#(U62(tt(),V)) -> isQid#(V)
   active#(U62(tt(),V)) -> U63#(isQid(V))
   active#(U62(tt(),V)) -> mark#(U63(isQid(V)))
   active#(U63(tt())) -> mark#(tt())
   active#(U71(tt(),I,P)) -> isPalListKind#(I)
   active#(U71(tt(),I,P)) -> U72#(isPalListKind(I),P)
   active#(U71(tt(),I,P)) -> mark#(U72(isPalListKind(I),P))
   active#(U72(tt(),P)) -> isPal#(P)
   active#(U72(tt(),P)) -> U73#(isPal(P),P)
   active#(U72(tt(),P)) -> mark#(U73(isPal(P),P))
   active#(U73(tt(),P)) -> isPalListKind#(P)
   active#(U73(tt(),P)) -> U74#(isPalListKind(P))
   active#(U73(tt(),P)) -> mark#(U74(isPalListKind(P)))
   active#(U74(tt())) -> mark#(tt())
   active#(U81(tt(),V)) -> isPalListKind#(V)
   active#(U81(tt(),V)) -> U82#(isPalListKind(V),V)
   active#(U81(tt(),V)) -> mark#(U82(isPalListKind(V),V))
   active#(U82(tt(),V)) -> isNePal#(V)
   active#(U82(tt(),V)) -> U83#(isNePal(V))
   active#(U82(tt(),V)) -> mark#(U83(isNePal(V)))
   active#(U83(tt())) -> mark#(tt())
   active#(U91(tt(),V2)) -> isPalListKind#(V2)
   active#(U91(tt(),V2)) -> U92#(isPalListKind(V2))
   active#(U91(tt(),V2)) -> mark#(U92(isPalListKind(V2)))
   active#(U92(tt())) -> mark#(tt())
   active#(isList(V)) -> isPalListKind#(V)
   active#(isList(V)) -> U11#(isPalListKind(V),V)
   active#(isList(V)) -> mark#(U11(isPalListKind(V),V))
   active#(isList(nil())) -> mark#(tt())
   active#(isList(__(V1,V2))) -> isPalListKind#(V1)
   active#(isList(__(V1,V2))) -> U21#(isPalListKind(V1),V1,V2)
   active#(isList(__(V1,V2))) -> mark#(U21(isPalListKind(V1),V1,V2))
   active#(isNeList(V)) -> isPalListKind#(V)
   active#(isNeList(V)) -> U31#(isPalListKind(V),V)
   active#(isNeList(V)) -> mark#(U31(isPalListKind(V),V))
   active#(isNeList(__(V1,V2))) -> isPalListKind#(V1)
   active#(isNeList(__(V1,V2))) -> U41#(isPalListKind(V1),V1,V2)
   active#(isNeList(__(V1,V2))) -> mark#(U41(isPalListKind(V1),V1,V2))
   active#(isNeList(__(V1,V2))) -> U51#(isPalListKind(V1),V1,V2)
   active#(isNeList(__(V1,V2))) -> mark#(U51(isPalListKind(V1),V1,V2))
   active#(isNePal(V)) -> isPalListKind#(V)
   active#(isNePal(V)) -> U61#(isPalListKind(V),V)
   active#(isNePal(V)) -> mark#(U61(isPalListKind(V),V))
   active#(isNePal(__(I,__(P,I)))) -> isQid#(I)
   active#(isNePal(__(I,__(P,I)))) -> U71#(isQid(I),I,P)
   active#(isNePal(__(I,__(P,I)))) -> mark#(U71(isQid(I),I,P))
   active#(isPal(V)) -> isPalListKind#(V)
   active#(isPal(V)) -> U81#(isPalListKind(V),V)
   active#(isPal(V)) -> mark#(U81(isPalListKind(V),V))
   active#(isPal(nil())) -> mark#(tt())
   active#(isPalListKind(a())) -> mark#(tt())
   active#(isPalListKind(e())) -> mark#(tt())
   active#(isPalListKind(i())) -> mark#(tt())
   active#(isPalListKind(nil())) -> mark#(tt())
   active#(isPalListKind(o())) -> mark#(tt())
   active#(isPalListKind(u())) -> mark#(tt())
   active#(isPalListKind(__(V1,V2))) -> isPalListKind#(V1)
   active#(isPalListKind(__(V1,V2))) -> U91#(isPalListKind(V1),V2)
   active#(isPalListKind(__(V1,V2))) -> mark#(U91(isPalListKind(V1),V2))
   active#(isQid(a())) -> mark#(tt())
   active#(isQid(e())) -> mark#(tt())
   active#(isQid(i())) -> mark#(tt())
   active#(isQid(o())) -> mark#(tt())
   active#(isQid(u())) -> mark#(tt())
   mark#(__(X1,X2)) -> mark#(X2)
   mark#(__(X1,X2)) -> mark#(X1)
   mark#(__(X1,X2)) -> __#(mark(X1),mark(X2))
   mark#(__(X1,X2)) -> active#(__(mark(X1),mark(X2)))
   mark#(nil()) -> active#(nil())
   mark#(U11(X1,X2)) -> mark#(X1)
   mark#(U11(X1,X2)) -> U11#(mark(X1),X2)
   mark#(U11(X1,X2)) -> active#(U11(mark(X1),X2))
   mark#(tt()) -> active#(tt())
   mark#(U12(X1,X2)) -> mark#(X1)
   mark#(U12(X1,X2)) -> U12#(mark(X1),X2)
   mark#(U12(X1,X2)) -> active#(U12(mark(X1),X2))
   mark#(isPalListKind(X)) -> active#(isPalListKind(X))
   mark#(U13(X)) -> mark#(X)
   mark#(U13(X)) -> U13#(mark(X))
   mark#(U13(X)) -> active#(U13(mark(X)))
   mark#(isNeList(X)) -> active#(isNeList(X))
   mark#(U21(X1,X2,X3)) -> mark#(X1)
   mark#(U21(X1,X2,X3)) -> U21#(mark(X1),X2,X3)
   mark#(U21(X1,X2,X3)) -> active#(U21(mark(X1),X2,X3))
   mark#(U22(X1,X2,X3)) -> mark#(X1)
   mark#(U22(X1,X2,X3)) -> U22#(mark(X1),X2,X3)
   mark#(U22(X1,X2,X3)) -> active#(U22(mark(X1),X2,X3))
   mark#(U23(X1,X2,X3)) -> mark#(X1)
   mark#(U23(X1,X2,X3)) -> U23#(mark(X1),X2,X3)
   mark#(U23(X1,X2,X3)) -> active#(U23(mark(X1),X2,X3))
   mark#(U24(X1,X2,X3)) -> mark#(X1)
   mark#(U24(X1,X2,X3)) -> U24#(mark(X1),X2,X3)
   mark#(U24(X1,X2,X3)) -> active#(U24(mark(X1),X2,X3))
   mark#(U25(X1,X2)) -> mark#(X1)
   mark#(U25(X1,X2)) -> U25#(mark(X1),X2)
   mark#(U25(X1,X2)) -> active#(U25(mark(X1),X2))
   mark#(isList(X)) -> active#(isList(X))
   mark#(U26(X)) -> mark#(X)
   mark#(U26(X)) -> U26#(mark(X))
   mark#(U26(X)) -> active#(U26(mark(X)))
   mark#(U31(X1,X2)) -> mark#(X1)
   mark#(U31(X1,X2)) -> U31#(mark(X1),X2)
   mark#(U31(X1,X2)) -> active#(U31(mark(X1),X2))
   mark#(U32(X1,X2)) -> mark#(X1)
   mark#(U32(X1,X2)) -> U32#(mark(X1),X2)
   mark#(U32(X1,X2)) -> active#(U32(mark(X1),X2))
   mark#(U33(X)) -> mark#(X)
   mark#(U33(X)) -> U33#(mark(X))
   mark#(U33(X)) -> active#(U33(mark(X)))
   mark#(isQid(X)) -> active#(isQid(X))
   mark#(U41(X1,X2,X3)) -> mark#(X1)
   mark#(U41(X1,X2,X3)) -> U41#(mark(X1),X2,X3)
   mark#(U41(X1,X2,X3)) -> active#(U41(mark(X1),X2,X3))
   mark#(U42(X1,X2,X3)) -> mark#(X1)
   mark#(U42(X1,X2,X3)) -> U42#(mark(X1),X2,X3)
   mark#(U42(X1,X2,X3)) -> active#(U42(mark(X1),X2,X3))
   mark#(U43(X1,X2,X3)) -> mark#(X1)
   mark#(U43(X1,X2,X3)) -> U43#(mark(X1),X2,X3)
   mark#(U43(X1,X2,X3)) -> active#(U43(mark(X1),X2,X3))
   mark#(U44(X1,X2,X3)) -> mark#(X1)
   mark#(U44(X1,X2,X3)) -> U44#(mark(X1),X2,X3)
   mark#(U44(X1,X2,X3)) -> active#(U44(mark(X1),X2,X3))
   mark#(U45(X1,X2)) -> mark#(X1)
   mark#(U45(X1,X2)) -> U45#(mark(X1),X2)
   mark#(U45(X1,X2)) -> active#(U45(mark(X1),X2))
   mark#(U46(X)) -> mark#(X)
   mark#(U46(X)) -> U46#(mark(X))
   mark#(U46(X)) -> active#(U46(mark(X)))
   mark#(U51(X1,X2,X3)) -> mark#(X1)
   mark#(U51(X1,X2,X3)) -> U51#(mark(X1),X2,X3)
   mark#(U51(X1,X2,X3)) -> active#(U51(mark(X1),X2,X3))
   mark#(U52(X1,X2,X3)) -> mark#(X1)
   mark#(U52(X1,X2,X3)) -> U52#(mark(X1),X2,X3)
   mark#(U52(X1,X2,X3)) -> active#(U52(mark(X1),X2,X3))
   mark#(U53(X1,X2,X3)) -> mark#(X1)
   mark#(U53(X1,X2,X3)) -> U53#(mark(X1),X2,X3)
   mark#(U53(X1,X2,X3)) -> active#(U53(mark(X1),X2,X3))
   mark#(U54(X1,X2,X3)) -> mark#(X1)
   mark#(U54(X1,X2,X3)) -> U54#(mark(X1),X2,X3)
   mark#(U54(X1,X2,X3)) -> active#(U54(mark(X1),X2,X3))
   mark#(U55(X1,X2)) -> mark#(X1)
   mark#(U55(X1,X2)) -> U55#(mark(X1),X2)
   mark#(U55(X1,X2)) -> active#(U55(mark(X1),X2))
   mark#(U56(X)) -> mark#(X)
   mark#(U56(X)) -> U56#(mark(X))
   mark#(U56(X)) -> active#(U56(mark(X)))
   mark#(U61(X1,X2)) -> mark#(X1)
   mark#(U61(X1,X2)) -> U61#(mark(X1),X2)
   mark#(U61(X1,X2)) -> active#(U61(mark(X1),X2))
   mark#(U62(X1,X2)) -> mark#(X1)
   mark#(U62(X1,X2)) -> U62#(mark(X1),X2)
   mark#(U62(X1,X2)) -> active#(U62(mark(X1),X2))
   mark#(U63(X)) -> mark#(X)
   mark#(U63(X)) -> U63#(mark(X))
   mark#(U63(X)) -> active#(U63(mark(X)))
   mark#(U71(X1,X2,X3)) -> mark#(X1)
   mark#(U71(X1,X2,X3)) -> U71#(mark(X1),X2,X3)
   mark#(U71(X1,X2,X3)) -> active#(U71(mark(X1),X2,X3))
   mark#(U72(X1,X2)) -> mark#(X1)
   mark#(U72(X1,X2)) -> U72#(mark(X1),X2)
   mark#(U72(X1,X2)) -> active#(U72(mark(X1),X2))
   mark#(U73(X1,X2)) -> mark#(X1)
   mark#(U73(X1,X2)) -> U73#(mark(X1),X2)
   mark#(U73(X1,X2)) -> active#(U73(mark(X1),X2))
   mark#(isPal(X)) -> active#(isPal(X))
   mark#(U74(X)) -> mark#(X)
   mark#(U74(X)) -> U74#(mark(X))
   mark#(U74(X)) -> active#(U74(mark(X)))
   mark#(U81(X1,X2)) -> mark#(X1)
   mark#(U81(X1,X2)) -> U81#(mark(X1),X2)
   mark#(U81(X1,X2)) -> active#(U81(mark(X1),X2))
   mark#(U82(X1,X2)) -> mark#(X1)
   mark#(U82(X1,X2)) -> U82#(mark(X1),X2)
   mark#(U82(X1,X2)) -> active#(U82(mark(X1),X2))
   mark#(U83(X)) -> mark#(X)
   mark#(U83(X)) -> U83#(mark(X))
   mark#(U83(X)) -> active#(U83(mark(X)))
   mark#(isNePal(X)) -> active#(isNePal(X))
   mark#(U91(X1,X2)) -> mark#(X1)
   mark#(U91(X1,X2)) -> U91#(mark(X1),X2)
   mark#(U91(X1,X2)) -> active#(U91(mark(X1),X2))
   mark#(U92(X)) -> mark#(X)
   mark#(U92(X)) -> U92#(mark(X))
   mark#(U92(X)) -> active#(U92(mark(X)))
   mark#(a()) -> active#(a())
   mark#(e()) -> active#(e())
   mark#(i()) -> active#(i())
   mark#(o()) -> active#(o())
   mark#(u()) -> active#(u())
   __#(mark(X1),X2) -> __#(X1,X2)
   __#(X1,mark(X2)) -> __#(X1,X2)
   __#(active(X1),X2) -> __#(X1,X2)
   __#(X1,active(X2)) -> __#(X1,X2)
   U11#(mark(X1),X2) -> U11#(X1,X2)
   U11#(X1,mark(X2)) -> U11#(X1,X2)
   U11#(active(X1),X2) -> U11#(X1,X2)
   U11#(X1,active(X2)) -> U11#(X1,X2)
   U12#(mark(X1),X2) -> U12#(X1,X2)
   U12#(X1,mark(X2)) -> U12#(X1,X2)
   U12#(active(X1),X2) -> U12#(X1,X2)
   U12#(X1,active(X2)) -> U12#(X1,X2)
   isPalListKind#(mark(X)) -> isPalListKind#(X)
   isPalListKind#(active(X)) -> isPalListKind#(X)
   U13#(mark(X)) -> U13#(X)
   U13#(active(X)) -> U13#(X)
   isNeList#(mark(X)) -> isNeList#(X)
   isNeList#(active(X)) -> isNeList#(X)
   U21#(mark(X1),X2,X3) -> U21#(X1,X2,X3)
   U21#(X1,mark(X2),X3) -> U21#(X1,X2,X3)
   U21#(X1,X2,mark(X3)) -> U21#(X1,X2,X3)
   U21#(active(X1),X2,X3) -> U21#(X1,X2,X3)
   U21#(X1,active(X2),X3) -> U21#(X1,X2,X3)
   U21#(X1,X2,active(X3)) -> U21#(X1,X2,X3)
   U22#(mark(X1),X2,X3) -> U22#(X1,X2,X3)
   U22#(X1,mark(X2),X3) -> U22#(X1,X2,X3)
   U22#(X1,X2,mark(X3)) -> U22#(X1,X2,X3)
   U22#(active(X1),X2,X3) -> U22#(X1,X2,X3)
   U22#(X1,active(X2),X3) -> U22#(X1,X2,X3)
   U22#(X1,X2,active(X3)) -> U22#(X1,X2,X3)
   U23#(mark(X1),X2,X3) -> U23#(X1,X2,X3)
   U23#(X1,mark(X2),X3) -> U23#(X1,X2,X3)
   U23#(X1,X2,mark(X3)) -> U23#(X1,X2,X3)
   U23#(active(X1),X2,X3) -> U23#(X1,X2,X3)
   U23#(X1,active(X2),X3) -> U23#(X1,X2,X3)
   U23#(X1,X2,active(X3)) -> U23#(X1,X2,X3)
   U24#(mark(X1),X2,X3) -> U24#(X1,X2,X3)
   U24#(X1,mark(X2),X3) -> U24#(X1,X2,X3)
   U24#(X1,X2,mark(X3)) -> U24#(X1,X2,X3)
   U24#(active(X1),X2,X3) -> U24#(X1,X2,X3)
   U24#(X1,active(X2),X3) -> U24#(X1,X2,X3)
   U24#(X1,X2,active(X3)) -> U24#(X1,X2,X3)
   U25#(mark(X1),X2) -> U25#(X1,X2)
   U25#(X1,mark(X2)) -> U25#(X1,X2)
   U25#(active(X1),X2) -> U25#(X1,X2)
   U25#(X1,active(X2)) -> U25#(X1,X2)
   isList#(mark(X)) -> isList#(X)
   isList#(active(X)) -> isList#(X)
   U26#(mark(X)) -> U26#(X)
   U26#(active(X)) -> U26#(X)
   U31#(mark(X1),X2) -> U31#(X1,X2)
   U31#(X1,mark(X2)) -> U31#(X1,X2)
   U31#(active(X1),X2) -> U31#(X1,X2)
   U31#(X1,active(X2)) -> U31#(X1,X2)
   U32#(mark(X1),X2) -> U32#(X1,X2)
   U32#(X1,mark(X2)) -> U32#(X1,X2)
   U32#(active(X1),X2) -> U32#(X1,X2)
   U32#(X1,active(X2)) -> U32#(X1,X2)
   U33#(mark(X)) -> U33#(X)
   U33#(active(X)) -> U33#(X)
   isQid#(mark(X)) -> isQid#(X)
   isQid#(active(X)) -> isQid#(X)
   U41#(mark(X1),X2,X3) -> U41#(X1,X2,X3)
   U41#(X1,mark(X2),X3) -> U41#(X1,X2,X3)
   U41#(X1,X2,mark(X3)) -> U41#(X1,X2,X3)
   U41#(active(X1),X2,X3) -> U41#(X1,X2,X3)
   U41#(X1,active(X2),X3) -> U41#(X1,X2,X3)
   U41#(X1,X2,active(X3)) -> U41#(X1,X2,X3)
   U42#(mark(X1),X2,X3) -> U42#(X1,X2,X3)
   U42#(X1,mark(X2),X3) -> U42#(X1,X2,X3)
   U42#(X1,X2,mark(X3)) -> U42#(X1,X2,X3)
   U42#(active(X1),X2,X3) -> U42#(X1,X2,X3)
   U42#(X1,active(X2),X3) -> U42#(X1,X2,X3)
   U42#(X1,X2,active(X3)) -> U42#(X1,X2,X3)
   U43#(mark(X1),X2,X3) -> U43#(X1,X2,X3)
   U43#(X1,mark(X2),X3) -> U43#(X1,X2,X3)
   U43#(X1,X2,mark(X3)) -> U43#(X1,X2,X3)
   U43#(active(X1),X2,X3) -> U43#(X1,X2,X3)
   U43#(X1,active(X2),X3) -> U43#(X1,X2,X3)
   U43#(X1,X2,active(X3)) -> U43#(X1,X2,X3)
   U44#(mark(X1),X2,X3) -> U44#(X1,X2,X3)
   U44#(X1,mark(X2),X3) -> U44#(X1,X2,X3)
   U44#(X1,X2,mark(X3)) -> U44#(X1,X2,X3)
   U44#(active(X1),X2,X3) -> U44#(X1,X2,X3)
   U44#(X1,active(X2),X3) -> U44#(X1,X2,X3)
   U44#(X1,X2,active(X3)) -> U44#(X1,X2,X3)
   U45#(mark(X1),X2) -> U45#(X1,X2)
   U45#(X1,mark(X2)) -> U45#(X1,X2)
   U45#(active(X1),X2) -> U45#(X1,X2)
   U45#(X1,active(X2)) -> U45#(X1,X2)
   U46#(mark(X)) -> U46#(X)
   U46#(active(X)) -> U46#(X)
   U51#(mark(X1),X2,X3) -> U51#(X1,X2,X3)
   U51#(X1,mark(X2),X3) -> U51#(X1,X2,X3)
   U51#(X1,X2,mark(X3)) -> U51#(X1,X2,X3)
   U51#(active(X1),X2,X3) -> U51#(X1,X2,X3)
   U51#(X1,active(X2),X3) -> U51#(X1,X2,X3)
   U51#(X1,X2,active(X3)) -> U51#(X1,X2,X3)
   U52#(mark(X1),X2,X3) -> U52#(X1,X2,X3)
   U52#(X1,mark(X2),X3) -> U52#(X1,X2,X3)
   U52#(X1,X2,mark(X3)) -> U52#(X1,X2,X3)
   U52#(active(X1),X2,X3) -> U52#(X1,X2,X3)
   U52#(X1,active(X2),X3) -> U52#(X1,X2,X3)
   U52#(X1,X2,active(X3)) -> U52#(X1,X2,X3)
   U53#(mark(X1),X2,X3) -> U53#(X1,X2,X3)
   U53#(X1,mark(X2),X3) -> U53#(X1,X2,X3)
   U53#(X1,X2,mark(X3)) -> U53#(X1,X2,X3)
   U53#(active(X1),X2,X3) -> U53#(X1,X2,X3)
   U53#(X1,active(X2),X3) -> U53#(X1,X2,X3)
   U53#(X1,X2,active(X3)) -> U53#(X1,X2,X3)
   U54#(mark(X1),X2,X3) -> U54#(X1,X2,X3)
   U54#(X1,mark(X2),X3) -> U54#(X1,X2,X3)
   U54#(X1,X2,mark(X3)) -> U54#(X1,X2,X3)
   U54#(active(X1),X2,X3) -> U54#(X1,X2,X3)
   U54#(X1,active(X2),X3) -> U54#(X1,X2,X3)
   U54#(X1,X2,active(X3)) -> U54#(X1,X2,X3)
   U55#(mark(X1),X2) -> U55#(X1,X2)
   U55#(X1,mark(X2)) -> U55#(X1,X2)
   U55#(active(X1),X2) -> U55#(X1,X2)
   U55#(X1,active(X2)) -> U55#(X1,X2)
   U56#(mark(X)) -> U56#(X)
   U56#(active(X)) -> U56#(X)
   U61#(mark(X1),X2) -> U61#(X1,X2)
   U61#(X1,mark(X2)) -> U61#(X1,X2)
   U61#(active(X1),X2) -> U61#(X1,X2)
   U61#(X1,active(X2)) -> U61#(X1,X2)
   U62#(mark(X1),X2) -> U62#(X1,X2)
   U62#(X1,mark(X2)) -> U62#(X1,X2)
   U62#(active(X1),X2) -> U62#(X1,X2)
   U62#(X1,active(X2)) -> U62#(X1,X2)
   U63#(mark(X)) -> U63#(X)
   U63#(active(X)) -> U63#(X)
   U71#(mark(X1),X2,X3) -> U71#(X1,X2,X3)
   U71#(X1,mark(X2),X3) -> U71#(X1,X2,X3)
   U71#(X1,X2,mark(X3)) -> U71#(X1,X2,X3)
   U71#(active(X1),X2,X3) -> U71#(X1,X2,X3)
   U71#(X1,active(X2),X3) -> U71#(X1,X2,X3)
   U71#(X1,X2,active(X3)) -> U71#(X1,X2,X3)
   U72#(mark(X1),X2) -> U72#(X1,X2)
   U72#(X1,mark(X2)) -> U72#(X1,X2)
   U72#(active(X1),X2) -> U72#(X1,X2)
   U72#(X1,active(X2)) -> U72#(X1,X2)
   U73#(mark(X1),X2) -> U73#(X1,X2)
   U73#(X1,mark(X2)) -> U73#(X1,X2)
   U73#(active(X1),X2) -> U73#(X1,X2)
   U73#(X1,active(X2)) -> U73#(X1,X2)
   isPal#(mark(X)) -> isPal#(X)
   isPal#(active(X)) -> isPal#(X)
   U74#(mark(X)) -> U74#(X)
   U74#(active(X)) -> U74#(X)
   U81#(mark(X1),X2) -> U81#(X1,X2)
   U81#(X1,mark(X2)) -> U81#(X1,X2)
   U81#(active(X1),X2) -> U81#(X1,X2)
   U81#(X1,active(X2)) -> U81#(X1,X2)
   U82#(mark(X1),X2) -> U82#(X1,X2)
   U82#(X1,mark(X2)) -> U82#(X1,X2)
   U82#(active(X1),X2) -> U82#(X1,X2)
   U82#(X1,active(X2)) -> U82#(X1,X2)
   U83#(mark(X)) -> U83#(X)
   U83#(active(X)) -> U83#(X)
   isNePal#(mark(X)) -> isNePal#(X)
   isNePal#(active(X)) -> isNePal#(X)
   U91#(mark(X1),X2) -> U91#(X1,X2)
   U91#(X1,mark(X2)) -> U91#(X1,X2)
   U91#(active(X1),X2) -> U91#(X1,X2)
   U91#(X1,active(X2)) -> U91#(X1,X2)
   U92#(mark(X)) -> U92#(X)
   U92#(active(X)) -> U92#(X)
  TRS:
   active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
   active(__(X,nil())) -> mark(X)
   active(__(nil(),X)) -> mark(X)
   active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
   active(U12(tt(),V)) -> mark(U13(isNeList(V)))
   active(U13(tt())) -> mark(tt())
   active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
   active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
   active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
   active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
   active(U25(tt(),V2)) -> mark(U26(isList(V2)))
   active(U26(tt())) -> mark(tt())
   active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
   active(U32(tt(),V)) -> mark(U33(isQid(V)))
   active(U33(tt())) -> mark(tt())
   active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
   active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
   active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
   active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
   active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
   active(U46(tt())) -> mark(tt())
   active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
   active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
   active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
   active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
   active(U55(tt(),V2)) -> mark(U56(isList(V2)))
   active(U56(tt())) -> mark(tt())
   active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
   active(U62(tt(),V)) -> mark(U63(isQid(V)))
   active(U63(tt())) -> mark(tt())
   active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
   active(U72(tt(),P)) -> mark(U73(isPal(P),P))
   active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
   active(U74(tt())) -> mark(tt())
   active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
   active(U82(tt(),V)) -> mark(U83(isNePal(V)))
   active(U83(tt())) -> mark(tt())
   active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
   active(U92(tt())) -> mark(tt())
   active(isList(V)) -> mark(U11(isPalListKind(V),V))
   active(isList(nil())) -> mark(tt())
   active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
   active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
   active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
   active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
   active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
   active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
   active(isPal(V)) -> mark(U81(isPalListKind(V),V))
   active(isPal(nil())) -> mark(tt())
   active(isPalListKind(a())) -> mark(tt())
   active(isPalListKind(e())) -> mark(tt())
   active(isPalListKind(i())) -> mark(tt())
   active(isPalListKind(nil())) -> mark(tt())
   active(isPalListKind(o())) -> mark(tt())
   active(isPalListKind(u())) -> mark(tt())
   active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
   active(isQid(a())) -> mark(tt())
   active(isQid(e())) -> mark(tt())
   active(isQid(i())) -> mark(tt())
   active(isQid(o())) -> mark(tt())
   active(isQid(u())) -> mark(tt())
   mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
   mark(nil()) -> active(nil())
   mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
   mark(tt()) -> active(tt())
   mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
   mark(isPalListKind(X)) -> active(isPalListKind(X))
   mark(U13(X)) -> active(U13(mark(X)))
   mark(isNeList(X)) -> active(isNeList(X))
   mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
   mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
   mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
   mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
   mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
   mark(isList(X)) -> active(isList(X))
   mark(U26(X)) -> active(U26(mark(X)))
   mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
   mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
   mark(U33(X)) -> active(U33(mark(X)))
   mark(isQid(X)) -> active(isQid(X))
   mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
   mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
   mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
   mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
   mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
   mark(U46(X)) -> active(U46(mark(X)))
   mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
   mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
   mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
   mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
   mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
   mark(U56(X)) -> active(U56(mark(X)))
   mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
   mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
   mark(U63(X)) -> active(U63(mark(X)))
   mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
   mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
   mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
   mark(isPal(X)) -> active(isPal(X))
   mark(U74(X)) -> active(U74(mark(X)))
   mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
   mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
   mark(U83(X)) -> active(U83(mark(X)))
   mark(isNePal(X)) -> active(isNePal(X))
   mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
   mark(U92(X)) -> active(U92(mark(X)))
   mark(a()) -> active(a())
   mark(e()) -> active(e())
   mark(i()) -> active(i())
   mark(o()) -> active(o())
   mark(u()) -> active(u())
   __(mark(X1),X2) -> __(X1,X2)
   __(X1,mark(X2)) -> __(X1,X2)
   __(active(X1),X2) -> __(X1,X2)
   __(X1,active(X2)) -> __(X1,X2)
   U11(mark(X1),X2) -> U11(X1,X2)
   U11(X1,mark(X2)) -> U11(X1,X2)
   U11(active(X1),X2) -> U11(X1,X2)
   U11(X1,active(X2)) -> U11(X1,X2)
   U12(mark(X1),X2) -> U12(X1,X2)
   U12(X1,mark(X2)) -> U12(X1,X2)
   U12(active(X1),X2) -> U12(X1,X2)
   U12(X1,active(X2)) -> U12(X1,X2)
   isPalListKind(mark(X)) -> isPalListKind(X)
   isPalListKind(active(X)) -> isPalListKind(X)
   U13(mark(X)) -> U13(X)
   U13(active(X)) -> U13(X)
   isNeList(mark(X)) -> isNeList(X)
   isNeList(active(X)) -> isNeList(X)
   U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
   U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
   U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
   U21(active(X1),X2,X3) -> U21(X1,X2,X3)
   U21(X1,active(X2),X3) -> U21(X1,X2,X3)
   U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
   U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
   U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
   U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
   U22(active(X1),X2,X3) -> U22(X1,X2,X3)
   U22(X1,active(X2),X3) -> U22(X1,X2,X3)
   U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
   U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
   U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
   U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
   U23(active(X1),X2,X3) -> U23(X1,X2,X3)
   U23(X1,active(X2),X3) -> U23(X1,X2,X3)
   U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
   U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
   U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
   U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
   U24(active(X1),X2,X3) -> U24(X1,X2,X3)
   U24(X1,active(X2),X3) -> U24(X1,X2,X3)
   U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
   U25(mark(X1),X2) -> U25(X1,X2)
   U25(X1,mark(X2)) -> U25(X1,X2)
   U25(active(X1),X2) -> U25(X1,X2)
   U25(X1,active(X2)) -> U25(X1,X2)
   isList(mark(X)) -> isList(X)
   isList(active(X)) -> isList(X)
   U26(mark(X)) -> U26(X)
   U26(active(X)) -> U26(X)
   U31(mark(X1),X2) -> U31(X1,X2)
   U31(X1,mark(X2)) -> U31(X1,X2)
   U31(active(X1),X2) -> U31(X1,X2)
   U31(X1,active(X2)) -> U31(X1,X2)
   U32(mark(X1),X2) -> U32(X1,X2)
   U32(X1,mark(X2)) -> U32(X1,X2)
   U32(active(X1),X2) -> U32(X1,X2)
   U32(X1,active(X2)) -> U32(X1,X2)
   U33(mark(X)) -> U33(X)
   U33(active(X)) -> U33(X)
   isQid(mark(X)) -> isQid(X)
   isQid(active(X)) -> isQid(X)
   U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
   U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
   U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
   U41(active(X1),X2,X3) -> U41(X1,X2,X3)
   U41(X1,active(X2),X3) -> U41(X1,X2,X3)
   U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
   U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
   U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
   U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
   U42(active(X1),X2,X3) -> U42(X1,X2,X3)
   U42(X1,active(X2),X3) -> U42(X1,X2,X3)
   U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
   U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
   U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
   U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
   U43(active(X1),X2,X3) -> U43(X1,X2,X3)
   U43(X1,active(X2),X3) -> U43(X1,X2,X3)
   U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
   U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
   U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
   U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
   U44(active(X1),X2,X3) -> U44(X1,X2,X3)
   U44(X1,active(X2),X3) -> U44(X1,X2,X3)
   U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
   U45(mark(X1),X2) -> U45(X1,X2)
   U45(X1,mark(X2)) -> U45(X1,X2)
   U45(active(X1),X2) -> U45(X1,X2)
   U45(X1,active(X2)) -> U45(X1,X2)
   U46(mark(X)) -> U46(X)
   U46(active(X)) -> U46(X)
   U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
   U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
   U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
   U51(active(X1),X2,X3) -> U51(X1,X2,X3)
   U51(X1,active(X2),X3) -> U51(X1,X2,X3)
   U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
   U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
   U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
   U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
   U52(active(X1),X2,X3) -> U52(X1,X2,X3)
   U52(X1,active(X2),X3) -> U52(X1,X2,X3)
   U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
   U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
   U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
   U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
   U53(active(X1),X2,X3) -> U53(X1,X2,X3)
   U53(X1,active(X2),X3) -> U53(X1,X2,X3)
   U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
   U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
   U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
   U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
   U54(active(X1),X2,X3) -> U54(X1,X2,X3)
   U54(X1,active(X2),X3) -> U54(X1,X2,X3)
   U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
   U55(mark(X1),X2) -> U55(X1,X2)
   U55(X1,mark(X2)) -> U55(X1,X2)
   U55(active(X1),X2) -> U55(X1,X2)
   U55(X1,active(X2)) -> U55(X1,X2)
   U56(mark(X)) -> U56(X)
   U56(active(X)) -> U56(X)
   U61(mark(X1),X2) -> U61(X1,X2)
   U61(X1,mark(X2)) -> U61(X1,X2)
   U61(active(X1),X2) -> U61(X1,X2)
   U61(X1,active(X2)) -> U61(X1,X2)
   U62(mark(X1),X2) -> U62(X1,X2)
   U62(X1,mark(X2)) -> U62(X1,X2)
   U62(active(X1),X2) -> U62(X1,X2)
   U62(X1,active(X2)) -> U62(X1,X2)
   U63(mark(X)) -> U63(X)
   U63(active(X)) -> U63(X)
   U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
   U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
   U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
   U71(active(X1),X2,X3) -> U71(X1,X2,X3)
   U71(X1,active(X2),X3) -> U71(X1,X2,X3)
   U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
   U72(mark(X1),X2) -> U72(X1,X2)
   U72(X1,mark(X2)) -> U72(X1,X2)
   U72(active(X1),X2) -> U72(X1,X2)
   U72(X1,active(X2)) -> U72(X1,X2)
   U73(mark(X1),X2) -> U73(X1,X2)
   U73(X1,mark(X2)) -> U73(X1,X2)
   U73(active(X1),X2) -> U73(X1,X2)
   U73(X1,active(X2)) -> U73(X1,X2)
   isPal(mark(X)) -> isPal(X)
   isPal(active(X)) -> isPal(X)
   U74(mark(X)) -> U74(X)
   U74(active(X)) -> U74(X)
   U81(mark(X1),X2) -> U81(X1,X2)
   U81(X1,mark(X2)) -> U81(X1,X2)
   U81(active(X1),X2) -> U81(X1,X2)
   U81(X1,active(X2)) -> U81(X1,X2)
   U82(mark(X1),X2) -> U82(X1,X2)
   U82(X1,mark(X2)) -> U82(X1,X2)
   U82(active(X1),X2) -> U82(X1,X2)
   U82(X1,active(X2)) -> U82(X1,X2)
   U83(mark(X)) -> U83(X)
   U83(active(X)) -> U83(X)
   isNePal(mark(X)) -> isNePal(X)
   isNePal(active(X)) -> isNePal(X)
   U91(mark(X1),X2) -> U91(X1,X2)
   U91(X1,mark(X2)) -> U91(X1,X2)
   U91(active(X1),X2) -> U91(X1,X2)
   U91(X1,active(X2)) -> U91(X1,X2)
   U92(mark(X)) -> U92(X)
   U92(active(X)) -> U92(X)
  EDG Processor:
   DPs:
    active#(__(__(X,Y),Z)) -> __#(Y,Z)
    active#(__(__(X,Y),Z)) -> __#(X,__(Y,Z))
    active#(__(__(X,Y),Z)) -> mark#(__(X,__(Y,Z)))
    active#(__(X,nil())) -> mark#(X)
    active#(__(nil(),X)) -> mark#(X)
    active#(U11(tt(),V)) -> isPalListKind#(V)
    active#(U11(tt(),V)) -> U12#(isPalListKind(V),V)
    active#(U11(tt(),V)) -> mark#(U12(isPalListKind(V),V))
    active#(U12(tt(),V)) -> isNeList#(V)
    active#(U12(tt(),V)) -> U13#(isNeList(V))
    active#(U12(tt(),V)) -> mark#(U13(isNeList(V)))
    active#(U13(tt())) -> mark#(tt())
    active#(U21(tt(),V1,V2)) -> isPalListKind#(V1)
    active#(U21(tt(),V1,V2)) -> U22#(isPalListKind(V1),V1,V2)
    active#(U21(tt(),V1,V2)) -> mark#(U22(isPalListKind(V1),V1,V2))
    active#(U22(tt(),V1,V2)) -> isPalListKind#(V2)
    active#(U22(tt(),V1,V2)) -> U23#(isPalListKind(V2),V1,V2)
    active#(U22(tt(),V1,V2)) -> mark#(U23(isPalListKind(V2),V1,V2))
    active#(U23(tt(),V1,V2)) -> isPalListKind#(V2)
    active#(U23(tt(),V1,V2)) -> U24#(isPalListKind(V2),V1,V2)
    active#(U23(tt(),V1,V2)) -> mark#(U24(isPalListKind(V2),V1,V2))
    active#(U24(tt(),V1,V2)) -> isList#(V1)
    active#(U24(tt(),V1,V2)) -> U25#(isList(V1),V2)
    active#(U24(tt(),V1,V2)) -> mark#(U25(isList(V1),V2))
    active#(U25(tt(),V2)) -> isList#(V2)
    active#(U25(tt(),V2)) -> U26#(isList(V2))
    active#(U25(tt(),V2)) -> mark#(U26(isList(V2)))
    active#(U26(tt())) -> mark#(tt())
    active#(U31(tt(),V)) -> isPalListKind#(V)
    active#(U31(tt(),V)) -> U32#(isPalListKind(V),V)
    active#(U31(tt(),V)) -> mark#(U32(isPalListKind(V),V))
    active#(U32(tt(),V)) -> isQid#(V)
    active#(U32(tt(),V)) -> U33#(isQid(V))
    active#(U32(tt(),V)) -> mark#(U33(isQid(V)))
    active#(U33(tt())) -> mark#(tt())
    active#(U41(tt(),V1,V2)) -> isPalListKind#(V1)
    active#(U41(tt(),V1,V2)) -> U42#(isPalListKind(V1),V1,V2)
    active#(U41(tt(),V1,V2)) -> mark#(U42(isPalListKind(V1),V1,V2))
    active#(U42(tt(),V1,V2)) -> isPalListKind#(V2)
    active#(U42(tt(),V1,V2)) -> U43#(isPalListKind(V2),V1,V2)
    active#(U42(tt(),V1,V2)) -> mark#(U43(isPalListKind(V2),V1,V2))
    active#(U43(tt(),V1,V2)) -> isPalListKind#(V2)
    active#(U43(tt(),V1,V2)) -> U44#(isPalListKind(V2),V1,V2)
    active#(U43(tt(),V1,V2)) -> mark#(U44(isPalListKind(V2),V1,V2))
    active#(U44(tt(),V1,V2)) -> isList#(V1)
    active#(U44(tt(),V1,V2)) -> U45#(isList(V1),V2)
    active#(U44(tt(),V1,V2)) -> mark#(U45(isList(V1),V2))
    active#(U45(tt(),V2)) -> isNeList#(V2)
    active#(U45(tt(),V2)) -> U46#(isNeList(V2))
    active#(U45(tt(),V2)) -> mark#(U46(isNeList(V2)))
    active#(U46(tt())) -> mark#(tt())
    active#(U51(tt(),V1,V2)) -> isPalListKind#(V1)
    active#(U51(tt(),V1,V2)) -> U52#(isPalListKind(V1),V1,V2)
    active#(U51(tt(),V1,V2)) -> mark#(U52(isPalListKind(V1),V1,V2))
    active#(U52(tt(),V1,V2)) -> isPalListKind#(V2)
    active#(U52(tt(),V1,V2)) -> U53#(isPalListKind(V2),V1,V2)
    active#(U52(tt(),V1,V2)) -> mark#(U53(isPalListKind(V2),V1,V2))
    active#(U53(tt(),V1,V2)) -> isPalListKind#(V2)
    active#(U53(tt(),V1,V2)) -> U54#(isPalListKind(V2),V1,V2)
    active#(U53(tt(),V1,V2)) -> mark#(U54(isPalListKind(V2),V1,V2))
    active#(U54(tt(),V1,V2)) -> isNeList#(V1)
    active#(U54(tt(),V1,V2)) -> U55#(isNeList(V1),V2)
    active#(U54(tt(),V1,V2)) -> mark#(U55(isNeList(V1),V2))
    active#(U55(tt(),V2)) -> isList#(V2)
    active#(U55(tt(),V2)) -> U56#(isList(V2))
    active#(U55(tt(),V2)) -> mark#(U56(isList(V2)))
    active#(U56(tt())) -> mark#(tt())
    active#(U61(tt(),V)) -> isPalListKind#(V)
    active#(U61(tt(),V)) -> U62#(isPalListKind(V),V)
    active#(U61(tt(),V)) -> mark#(U62(isPalListKind(V),V))
    active#(U62(tt(),V)) -> isQid#(V)
    active#(U62(tt(),V)) -> U63#(isQid(V))
    active#(U62(tt(),V)) -> mark#(U63(isQid(V)))
    active#(U63(tt())) -> mark#(tt())
    active#(U71(tt(),I,P)) -> isPalListKind#(I)
    active#(U71(tt(),I,P)) -> U72#(isPalListKind(I),P)
    active#(U71(tt(),I,P)) -> mark#(U72(isPalListKind(I),P))
    active#(U72(tt(),P)) -> isPal#(P)
    active#(U72(tt(),P)) -> U73#(isPal(P),P)
    active#(U72(tt(),P)) -> mark#(U73(isPal(P),P))
    active#(U73(tt(),P)) -> isPalListKind#(P)
    active#(U73(tt(),P)) -> U74#(isPalListKind(P))
    active#(U73(tt(),P)) -> mark#(U74(isPalListKind(P)))
    active#(U74(tt())) -> mark#(tt())
    active#(U81(tt(),V)) -> isPalListKind#(V)
    active#(U81(tt(),V)) -> U82#(isPalListKind(V),V)
    active#(U81(tt(),V)) -> mark#(U82(isPalListKind(V),V))
    active#(U82(tt(),V)) -> isNePal#(V)
    active#(U82(tt(),V)) -> U83#(isNePal(V))
    active#(U82(tt(),V)) -> mark#(U83(isNePal(V)))
    active#(U83(tt())) -> mark#(tt())
    active#(U91(tt(),V2)) -> isPalListKind#(V2)
    active#(U91(tt(),V2)) -> U92#(isPalListKind(V2))
    active#(U91(tt(),V2)) -> mark#(U92(isPalListKind(V2)))
    active#(U92(tt())) -> mark#(tt())
    active#(isList(V)) -> isPalListKind#(V)
    active#(isList(V)) -> U11#(isPalListKind(V),V)
    active#(isList(V)) -> mark#(U11(isPalListKind(V),V))
    active#(isList(nil())) -> mark#(tt())
    active#(isList(__(V1,V2))) -> isPalListKind#(V1)
    active#(isList(__(V1,V2))) -> U21#(isPalListKind(V1),V1,V2)
    active#(isList(__(V1,V2))) -> mark#(U21(isPalListKind(V1),V1,V2))
    active#(isNeList(V)) -> isPalListKind#(V)
    active#(isNeList(V)) -> U31#(isPalListKind(V),V)
    active#(isNeList(V)) -> mark#(U31(isPalListKind(V),V))
    active#(isNeList(__(V1,V2))) -> isPalListKind#(V1)
    active#(isNeList(__(V1,V2))) -> U41#(isPalListKind(V1),V1,V2)
    active#(isNeList(__(V1,V2))) -> mark#(U41(isPalListKind(V1),V1,V2))
    active#(isNeList(__(V1,V2))) -> U51#(isPalListKind(V1),V1,V2)
    active#(isNeList(__(V1,V2))) -> mark#(U51(isPalListKind(V1),V1,V2))
    active#(isNePal(V)) -> isPalListKind#(V)
    active#(isNePal(V)) -> U61#(isPalListKind(V),V)
    active#(isNePal(V)) -> mark#(U61(isPalListKind(V),V))
    active#(isNePal(__(I,__(P,I)))) -> isQid#(I)
    active#(isNePal(__(I,__(P,I)))) -> U71#(isQid(I),I,P)
    active#(isNePal(__(I,__(P,I)))) -> mark#(U71(isQid(I),I,P))
    active#(isPal(V)) -> isPalListKind#(V)
    active#(isPal(V)) -> U81#(isPalListKind(V),V)
    active#(isPal(V)) -> mark#(U81(isPalListKind(V),V))
    active#(isPal(nil())) -> mark#(tt())
    active#(isPalListKind(a())) -> mark#(tt())
    active#(isPalListKind(e())) -> mark#(tt())
    active#(isPalListKind(i())) -> mark#(tt())
    active#(isPalListKind(nil())) -> mark#(tt())
    active#(isPalListKind(o())) -> mark#(tt())
    active#(isPalListKind(u())) -> mark#(tt())
    active#(isPalListKind(__(V1,V2))) -> isPalListKind#(V1)
    active#(isPalListKind(__(V1,V2))) -> U91#(isPalListKind(V1),V2)
    active#(isPalListKind(__(V1,V2))) -> mark#(U91(isPalListKind(V1),V2))
    active#(isQid(a())) -> mark#(tt())
    active#(isQid(e())) -> mark#(tt())
    active#(isQid(i())) -> mark#(tt())
    active#(isQid(o())) -> mark#(tt())
    active#(isQid(u())) -> mark#(tt())
    mark#(__(X1,X2)) -> mark#(X2)
    mark#(__(X1,X2)) -> mark#(X1)
    mark#(__(X1,X2)) -> __#(mark(X1),mark(X2))
    mark#(__(X1,X2)) -> active#(__(mark(X1),mark(X2)))
    mark#(nil()) -> active#(nil())
    mark#(U11(X1,X2)) -> mark#(X1)
    mark#(U11(X1,X2)) -> U11#(mark(X1),X2)
    mark#(U11(X1,X2)) -> active#(U11(mark(X1),X2))
    mark#(tt()) -> active#(tt())
    mark#(U12(X1,X2)) -> mark#(X1)
    mark#(U12(X1,X2)) -> U12#(mark(X1),X2)
    mark#(U12(X1,X2)) -> active#(U12(mark(X1),X2))
    mark#(isPalListKind(X)) -> active#(isPalListKind(X))
    mark#(U13(X)) -> mark#(X)
    mark#(U13(X)) -> U13#(mark(X))
    mark#(U13(X)) -> active#(U13(mark(X)))
    mark#(isNeList(X)) -> active#(isNeList(X))
    mark#(U21(X1,X2,X3)) -> mark#(X1)
    mark#(U21(X1,X2,X3)) -> U21#(mark(X1),X2,X3)
    mark#(U21(X1,X2,X3)) -> active#(U21(mark(X1),X2,X3))
    mark#(U22(X1,X2,X3)) -> mark#(X1)
    mark#(U22(X1,X2,X3)) -> U22#(mark(X1),X2,X3)
    mark#(U22(X1,X2,X3)) -> active#(U22(mark(X1),X2,X3))
    mark#(U23(X1,X2,X3)) -> mark#(X1)
    mark#(U23(X1,X2,X3)) -> U23#(mark(X1),X2,X3)
    mark#(U23(X1,X2,X3)) -> active#(U23(mark(X1),X2,X3))
    mark#(U24(X1,X2,X3)) -> mark#(X1)
    mark#(U24(X1,X2,X3)) -> U24#(mark(X1),X2,X3)
    mark#(U24(X1,X2,X3)) -> active#(U24(mark(X1),X2,X3))
    mark#(U25(X1,X2)) -> mark#(X1)
    mark#(U25(X1,X2)) -> U25#(mark(X1),X2)
    mark#(U25(X1,X2)) -> active#(U25(mark(X1),X2))
    mark#(isList(X)) -> active#(isList(X))
    mark#(U26(X)) -> mark#(X)
    mark#(U26(X)) -> U26#(mark(X))
    mark#(U26(X)) -> active#(U26(mark(X)))
    mark#(U31(X1,X2)) -> mark#(X1)
    mark#(U31(X1,X2)) -> U31#(mark(X1),X2)
    mark#(U31(X1,X2)) -> active#(U31(mark(X1),X2))
    mark#(U32(X1,X2)) -> mark#(X1)
    mark#(U32(X1,X2)) -> U32#(mark(X1),X2)
    mark#(U32(X1,X2)) -> active#(U32(mark(X1),X2))
    mark#(U33(X)) -> mark#(X)
    mark#(U33(X)) -> U33#(mark(X))
    mark#(U33(X)) -> active#(U33(mark(X)))
    mark#(isQid(X)) -> active#(isQid(X))
    mark#(U41(X1,X2,X3)) -> mark#(X1)
    mark#(U41(X1,X2,X3)) -> U41#(mark(X1),X2,X3)
    mark#(U41(X1,X2,X3)) -> active#(U41(mark(X1),X2,X3))
    mark#(U42(X1,X2,X3)) -> mark#(X1)
    mark#(U42(X1,X2,X3)) -> U42#(mark(X1),X2,X3)
    mark#(U42(X1,X2,X3)) -> active#(U42(mark(X1),X2,X3))
    mark#(U43(X1,X2,X3)) -> mark#(X1)
    mark#(U43(X1,X2,X3)) -> U43#(mark(X1),X2,X3)
    mark#(U43(X1,X2,X3)) -> active#(U43(mark(X1),X2,X3))
    mark#(U44(X1,X2,X3)) -> mark#(X1)
    mark#(U44(X1,X2,X3)) -> U44#(mark(X1),X2,X3)
    mark#(U44(X1,X2,X3)) -> active#(U44(mark(X1),X2,X3))
    mark#(U45(X1,X2)) -> mark#(X1)
    mark#(U45(X1,X2)) -> U45#(mark(X1),X2)
    mark#(U45(X1,X2)) -> active#(U45(mark(X1),X2))
    mark#(U46(X)) -> mark#(X)
    mark#(U46(X)) -> U46#(mark(X))
    mark#(U46(X)) -> active#(U46(mark(X)))
    mark#(U51(X1,X2,X3)) -> mark#(X1)
    mark#(U51(X1,X2,X3)) -> U51#(mark(X1),X2,X3)
    mark#(U51(X1,X2,X3)) -> active#(U51(mark(X1),X2,X3))
    mark#(U52(X1,X2,X3)) -> mark#(X1)
    mark#(U52(X1,X2,X3)) -> U52#(mark(X1),X2,X3)
    mark#(U52(X1,X2,X3)) -> active#(U52(mark(X1),X2,X3))
    mark#(U53(X1,X2,X3)) -> mark#(X1)
    mark#(U53(X1,X2,X3)) -> U53#(mark(X1),X2,X3)
    mark#(U53(X1,X2,X3)) -> active#(U53(mark(X1),X2,X3))
    mark#(U54(X1,X2,X3)) -> mark#(X1)
    mark#(U54(X1,X2,X3)) -> U54#(mark(X1),X2,X3)
    mark#(U54(X1,X2,X3)) -> active#(U54(mark(X1),X2,X3))
    mark#(U55(X1,X2)) -> mark#(X1)
    mark#(U55(X1,X2)) -> U55#(mark(X1),X2)
    mark#(U55(X1,X2)) -> active#(U55(mark(X1),X2))
    mark#(U56(X)) -> mark#(X)
    mark#(U56(X)) -> U56#(mark(X))
    mark#(U56(X)) -> active#(U56(mark(X)))
    mark#(U61(X1,X2)) -> mark#(X1)
    mark#(U61(X1,X2)) -> U61#(mark(X1),X2)
    mark#(U61(X1,X2)) -> active#(U61(mark(X1),X2))
    mark#(U62(X1,X2)) -> mark#(X1)
    mark#(U62(X1,X2)) -> U62#(mark(X1),X2)
    mark#(U62(X1,X2)) -> active#(U62(mark(X1),X2))
    mark#(U63(X)) -> mark#(X)
    mark#(U63(X)) -> U63#(mark(X))
    mark#(U63(X)) -> active#(U63(mark(X)))
    mark#(U71(X1,X2,X3)) -> mark#(X1)
    mark#(U71(X1,X2,X3)) -> U71#(mark(X1),X2,X3)
    mark#(U71(X1,X2,X3)) -> active#(U71(mark(X1),X2,X3))
    mark#(U72(X1,X2)) -> mark#(X1)
    mark#(U72(X1,X2)) -> U72#(mark(X1),X2)
    mark#(U72(X1,X2)) -> active#(U72(mark(X1),X2))
    mark#(U73(X1,X2)) -> mark#(X1)
    mark#(U73(X1,X2)) -> U73#(mark(X1),X2)
    mark#(U73(X1,X2)) -> active#(U73(mark(X1),X2))
    mark#(isPal(X)) -> active#(isPal(X))
    mark#(U74(X)) -> mark#(X)
    mark#(U74(X)) -> U74#(mark(X))
    mark#(U74(X)) -> active#(U74(mark(X)))
    mark#(U81(X1,X2)) -> mark#(X1)
    mark#(U81(X1,X2)) -> U81#(mark(X1),X2)
    mark#(U81(X1,X2)) -> active#(U81(mark(X1),X2))
    mark#(U82(X1,X2)) -> mark#(X1)
    mark#(U82(X1,X2)) -> U82#(mark(X1),X2)
    mark#(U82(X1,X2)) -> active#(U82(mark(X1),X2))
    mark#(U83(X)) -> mark#(X)
    mark#(U83(X)) -> U83#(mark(X))
    mark#(U83(X)) -> active#(U83(mark(X)))
    mark#(isNePal(X)) -> active#(isNePal(X))
    mark#(U91(X1,X2)) -> mark#(X1)
    mark#(U91(X1,X2)) -> U91#(mark(X1),X2)
    mark#(U91(X1,X2)) -> active#(U91(mark(X1),X2))
    mark#(U92(X)) -> mark#(X)
    mark#(U92(X)) -> U92#(mark(X))
    mark#(U92(X)) -> active#(U92(mark(X)))
    mark#(a()) -> active#(a())
    mark#(e()) -> active#(e())
    mark#(i()) -> active#(i())
    mark#(o()) -> active#(o())
    mark#(u()) -> active#(u())
    __#(mark(X1),X2) -> __#(X1,X2)
    __#(X1,mark(X2)) -> __#(X1,X2)
    __#(active(X1),X2) -> __#(X1,X2)
    __#(X1,active(X2)) -> __#(X1,X2)
    U11#(mark(X1),X2) -> U11#(X1,X2)
    U11#(X1,mark(X2)) -> U11#(X1,X2)
    U11#(active(X1),X2) -> U11#(X1,X2)
    U11#(X1,active(X2)) -> U11#(X1,X2)
    U12#(mark(X1),X2) -> U12#(X1,X2)
    U12#(X1,mark(X2)) -> U12#(X1,X2)
    U12#(active(X1),X2) -> U12#(X1,X2)
    U12#(X1,active(X2)) -> U12#(X1,X2)
    isPalListKind#(mark(X)) -> isPalListKind#(X)
    isPalListKind#(active(X)) -> isPalListKind#(X)
    U13#(mark(X)) -> U13#(X)
    U13#(active(X)) -> U13#(X)
    isNeList#(mark(X)) -> isNeList#(X)
    isNeList#(active(X)) -> isNeList#(X)
    U21#(mark(X1),X2,X3) -> U21#(X1,X2,X3)
    U21#(X1,mark(X2),X3) -> U21#(X1,X2,X3)
    U21#(X1,X2,mark(X3)) -> U21#(X1,X2,X3)
    U21#(active(X1),X2,X3) -> U21#(X1,X2,X3)
    U21#(X1,active(X2),X3) -> U21#(X1,X2,X3)
    U21#(X1,X2,active(X3)) -> U21#(X1,X2,X3)
    U22#(mark(X1),X2,X3) -> U22#(X1,X2,X3)
    U22#(X1,mark(X2),X3) -> U22#(X1,X2,X3)
    U22#(X1,X2,mark(X3)) -> U22#(X1,X2,X3)
    U22#(active(X1),X2,X3) -> U22#(X1,X2,X3)
    U22#(X1,active(X2),X3) -> U22#(X1,X2,X3)
    U22#(X1,X2,active(X3)) -> U22#(X1,X2,X3)
    U23#(mark(X1),X2,X3) -> U23#(X1,X2,X3)
    U23#(X1,mark(X2),X3) -> U23#(X1,X2,X3)
    U23#(X1,X2,mark(X3)) -> U23#(X1,X2,X3)
    U23#(active(X1),X2,X3) -> U23#(X1,X2,X3)
    U23#(X1,active(X2),X3) -> U23#(X1,X2,X3)
    U23#(X1,X2,active(X3)) -> U23#(X1,X2,X3)
    U24#(mark(X1),X2,X3) -> U24#(X1,X2,X3)
    U24#(X1,mark(X2),X3) -> U24#(X1,X2,X3)
    U24#(X1,X2,mark(X3)) -> U24#(X1,X2,X3)
    U24#(active(X1),X2,X3) -> U24#(X1,X2,X3)
    U24#(X1,active(X2),X3) -> U24#(X1,X2,X3)
    U24#(X1,X2,active(X3)) -> U24#(X1,X2,X3)
    U25#(mark(X1),X2) -> U25#(X1,X2)
    U25#(X1,mark(X2)) -> U25#(X1,X2)
    U25#(active(X1),X2) -> U25#(X1,X2)
    U25#(X1,active(X2)) -> U25#(X1,X2)
    isList#(mark(X)) -> isList#(X)
    isList#(active(X)) -> isList#(X)
    U26#(mark(X)) -> U26#(X)
    U26#(active(X)) -> U26#(X)
    U31#(mark(X1),X2) -> U31#(X1,X2)
    U31#(X1,mark(X2)) -> U31#(X1,X2)
    U31#(active(X1),X2) -> U31#(X1,X2)
    U31#(X1,active(X2)) -> U31#(X1,X2)
    U32#(mark(X1),X2) -> U32#(X1,X2)
    U32#(X1,mark(X2)) -> U32#(X1,X2)
    U32#(active(X1),X2) -> U32#(X1,X2)
    U32#(X1,active(X2)) -> U32#(X1,X2)
    U33#(mark(X)) -> U33#(X)
    U33#(active(X)) -> U33#(X)
    isQid#(mark(X)) -> isQid#(X)
    isQid#(active(X)) -> isQid#(X)
    U41#(mark(X1),X2,X3) -> U41#(X1,X2,X3)
    U41#(X1,mark(X2),X3) -> U41#(X1,X2,X3)
    U41#(X1,X2,mark(X3)) -> U41#(X1,X2,X3)
    U41#(active(X1),X2,X3) -> U41#(X1,X2,X3)
    U41#(X1,active(X2),X3) -> U41#(X1,X2,X3)
    U41#(X1,X2,active(X3)) -> U41#(X1,X2,X3)
    U42#(mark(X1),X2,X3) -> U42#(X1,X2,X3)
    U42#(X1,mark(X2),X3) -> U42#(X1,X2,X3)
    U42#(X1,X2,mark(X3)) -> U42#(X1,X2,X3)
    U42#(active(X1),X2,X3) -> U42#(X1,X2,X3)
    U42#(X1,active(X2),X3) -> U42#(X1,X2,X3)
    U42#(X1,X2,active(X3)) -> U42#(X1,X2,X3)
    U43#(mark(X1),X2,X3) -> U43#(X1,X2,X3)
    U43#(X1,mark(X2),X3) -> U43#(X1,X2,X3)
    U43#(X1,X2,mark(X3)) -> U43#(X1,X2,X3)
    U43#(active(X1),X2,X3) -> U43#(X1,X2,X3)
    U43#(X1,active(X2),X3) -> U43#(X1,X2,X3)
    U43#(X1,X2,active(X3)) -> U43#(X1,X2,X3)
    U44#(mark(X1),X2,X3) -> U44#(X1,X2,X3)
    U44#(X1,mark(X2),X3) -> U44#(X1,X2,X3)
    U44#(X1,X2,mark(X3)) -> U44#(X1,X2,X3)
    U44#(active(X1),X2,X3) -> U44#(X1,X2,X3)
    U44#(X1,active(X2),X3) -> U44#(X1,X2,X3)
    U44#(X1,X2,active(X3)) -> U44#(X1,X2,X3)
    U45#(mark(X1),X2) -> U45#(X1,X2)
    U45#(X1,mark(X2)) -> U45#(X1,X2)
    U45#(active(X1),X2) -> U45#(X1,X2)
    U45#(X1,active(X2)) -> U45#(X1,X2)
    U46#(mark(X)) -> U46#(X)
    U46#(active(X)) -> U46#(X)
    U51#(mark(X1),X2,X3) -> U51#(X1,X2,X3)
    U51#(X1,mark(X2),X3) -> U51#(X1,X2,X3)
    U51#(X1,X2,mark(X3)) -> U51#(X1,X2,X3)
    U51#(active(X1),X2,X3) -> U51#(X1,X2,X3)
    U51#(X1,active(X2),X3) -> U51#(X1,X2,X3)
    U51#(X1,X2,active(X3)) -> U51#(X1,X2,X3)
    U52#(mark(X1),X2,X3) -> U52#(X1,X2,X3)
    U52#(X1,mark(X2),X3) -> U52#(X1,X2,X3)
    U52#(X1,X2,mark(X3)) -> U52#(X1,X2,X3)
    U52#(active(X1),X2,X3) -> U52#(X1,X2,X3)
    U52#(X1,active(X2),X3) -> U52#(X1,X2,X3)
    U52#(X1,X2,active(X3)) -> U52#(X1,X2,X3)
    U53#(mark(X1),X2,X3) -> U53#(X1,X2,X3)
    U53#(X1,mark(X2),X3) -> U53#(X1,X2,X3)
    U53#(X1,X2,mark(X3)) -> U53#(X1,X2,X3)
    U53#(active(X1),X2,X3) -> U53#(X1,X2,X3)
    U53#(X1,active(X2),X3) -> U53#(X1,X2,X3)
    U53#(X1,X2,active(X3)) -> U53#(X1,X2,X3)
    U54#(mark(X1),X2,X3) -> U54#(X1,X2,X3)
    U54#(X1,mark(X2),X3) -> U54#(X1,X2,X3)
    U54#(X1,X2,mark(X3)) -> U54#(X1,X2,X3)
    U54#(active(X1),X2,X3) -> U54#(X1,X2,X3)
    U54#(X1,active(X2),X3) -> U54#(X1,X2,X3)
    U54#(X1,X2,active(X3)) -> U54#(X1,X2,X3)
    U55#(mark(X1),X2) -> U55#(X1,X2)
    U55#(X1,mark(X2)) -> U55#(X1,X2)
    U55#(active(X1),X2) -> U55#(X1,X2)
    U55#(X1,active(X2)) -> U55#(X1,X2)
    U56#(mark(X)) -> U56#(X)
    U56#(active(X)) -> U56#(X)
    U61#(mark(X1),X2) -> U61#(X1,X2)
    U61#(X1,mark(X2)) -> U61#(X1,X2)
    U61#(active(X1),X2) -> U61#(X1,X2)
    U61#(X1,active(X2)) -> U61#(X1,X2)
    U62#(mark(X1),X2) -> U62#(X1,X2)
    U62#(X1,mark(X2)) -> U62#(X1,X2)
    U62#(active(X1),X2) -> U62#(X1,X2)
    U62#(X1,active(X2)) -> U62#(X1,X2)
    U63#(mark(X)) -> U63#(X)
    U63#(active(X)) -> U63#(X)
    U71#(mark(X1),X2,X3) -> U71#(X1,X2,X3)
    U71#(X1,mark(X2),X3) -> U71#(X1,X2,X3)
    U71#(X1,X2,mark(X3)) -> U71#(X1,X2,X3)
    U71#(active(X1),X2,X3) -> U71#(X1,X2,X3)
    U71#(X1,active(X2),X3) -> U71#(X1,X2,X3)
    U71#(X1,X2,active(X3)) -> U71#(X1,X2,X3)
    U72#(mark(X1),X2) -> U72#(X1,X2)
    U72#(X1,mark(X2)) -> U72#(X1,X2)
    U72#(active(X1),X2) -> U72#(X1,X2)
    U72#(X1,active(X2)) -> U72#(X1,X2)
    U73#(mark(X1),X2) -> U73#(X1,X2)
    U73#(X1,mark(X2)) -> U73#(X1,X2)
    U73#(active(X1),X2) -> U73#(X1,X2)
    U73#(X1,active(X2)) -> U73#(X1,X2)
    isPal#(mark(X)) -> isPal#(X)
    isPal#(active(X)) -> isPal#(X)
    U74#(mark(X)) -> U74#(X)
    U74#(active(X)) -> U74#(X)
    U81#(mark(X1),X2) -> U81#(X1,X2)
    U81#(X1,mark(X2)) -> U81#(X1,X2)
    U81#(active(X1),X2) -> U81#(X1,X2)
    U81#(X1,active(X2)) -> U81#(X1,X2)
    U82#(mark(X1),X2) -> U82#(X1,X2)
    U82#(X1,mark(X2)) -> U82#(X1,X2)
    U82#(active(X1),X2) -> U82#(X1,X2)
    U82#(X1,active(X2)) -> U82#(X1,X2)
    U83#(mark(X)) -> U83#(X)
    U83#(active(X)) -> U83#(X)
    isNePal#(mark(X)) -> isNePal#(X)
    isNePal#(active(X)) -> isNePal#(X)
    U91#(mark(X1),X2) -> U91#(X1,X2)
    U91#(X1,mark(X2)) -> U91#(X1,X2)
    U91#(active(X1),X2) -> U91#(X1,X2)
    U91#(X1,active(X2)) -> U91#(X1,X2)
    U92#(mark(X)) -> U92#(X)
    U92#(active(X)) -> U92#(X)
   TRS:
    active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
    active(__(X,nil())) -> mark(X)
    active(__(nil(),X)) -> mark(X)
    active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
    active(U12(tt(),V)) -> mark(U13(isNeList(V)))
    active(U13(tt())) -> mark(tt())
    active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
    active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
    active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
    active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
    active(U25(tt(),V2)) -> mark(U26(isList(V2)))
    active(U26(tt())) -> mark(tt())
    active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
    active(U32(tt(),V)) -> mark(U33(isQid(V)))
    active(U33(tt())) -> mark(tt())
    active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
    active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
    active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
    active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
    active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
    active(U46(tt())) -> mark(tt())
    active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
    active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
    active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
    active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
    active(U55(tt(),V2)) -> mark(U56(isList(V2)))
    active(U56(tt())) -> mark(tt())
    active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
    active(U62(tt(),V)) -> mark(U63(isQid(V)))
    active(U63(tt())) -> mark(tt())
    active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
    active(U72(tt(),P)) -> mark(U73(isPal(P),P))
    active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
    active(U74(tt())) -> mark(tt())
    active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
    active(U82(tt(),V)) -> mark(U83(isNePal(V)))
    active(U83(tt())) -> mark(tt())
    active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
    active(U92(tt())) -> mark(tt())
    active(isList(V)) -> mark(U11(isPalListKind(V),V))
    active(isList(nil())) -> mark(tt())
    active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
    active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
    active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
    active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
    active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
    active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
    active(isPal(V)) -> mark(U81(isPalListKind(V),V))
    active(isPal(nil())) -> mark(tt())
    active(isPalListKind(a())) -> mark(tt())
    active(isPalListKind(e())) -> mark(tt())
    active(isPalListKind(i())) -> mark(tt())
    active(isPalListKind(nil())) -> mark(tt())
    active(isPalListKind(o())) -> mark(tt())
    active(isPalListKind(u())) -> mark(tt())
    active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
    active(isQid(a())) -> mark(tt())
    active(isQid(e())) -> mark(tt())
    active(isQid(i())) -> mark(tt())
    active(isQid(o())) -> mark(tt())
    active(isQid(u())) -> mark(tt())
    mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
    mark(nil()) -> active(nil())
    mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
    mark(tt()) -> active(tt())
    mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
    mark(isPalListKind(X)) -> active(isPalListKind(X))
    mark(U13(X)) -> active(U13(mark(X)))
    mark(isNeList(X)) -> active(isNeList(X))
    mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
    mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
    mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
    mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
    mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
    mark(isList(X)) -> active(isList(X))
    mark(U26(X)) -> active(U26(mark(X)))
    mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
    mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
    mark(U33(X)) -> active(U33(mark(X)))
    mark(isQid(X)) -> active(isQid(X))
    mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
    mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
    mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
    mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
    mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
    mark(U46(X)) -> active(U46(mark(X)))
    mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
    mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
    mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
    mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
    mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
    mark(U56(X)) -> active(U56(mark(X)))
    mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
    mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
    mark(U63(X)) -> active(U63(mark(X)))
    mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
    mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
    mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
    mark(isPal(X)) -> active(isPal(X))
    mark(U74(X)) -> active(U74(mark(X)))
    mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
    mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
    mark(U83(X)) -> active(U83(mark(X)))
    mark(isNePal(X)) -> active(isNePal(X))
    mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
    mark(U92(X)) -> active(U92(mark(X)))
    mark(a()) -> active(a())
    mark(e()) -> active(e())
    mark(i()) -> active(i())
    mark(o()) -> active(o())
    mark(u()) -> active(u())
    __(mark(X1),X2) -> __(X1,X2)
    __(X1,mark(X2)) -> __(X1,X2)
    __(active(X1),X2) -> __(X1,X2)
    __(X1,active(X2)) -> __(X1,X2)
    U11(mark(X1),X2) -> U11(X1,X2)
    U11(X1,mark(X2)) -> U11(X1,X2)
    U11(active(X1),X2) -> U11(X1,X2)
    U11(X1,active(X2)) -> U11(X1,X2)
    U12(mark(X1),X2) -> U12(X1,X2)
    U12(X1,mark(X2)) -> U12(X1,X2)
    U12(active(X1),X2) -> U12(X1,X2)
    U12(X1,active(X2)) -> U12(X1,X2)
    isPalListKind(mark(X)) -> isPalListKind(X)
    isPalListKind(active(X)) -> isPalListKind(X)
    U13(mark(X)) -> U13(X)
    U13(active(X)) -> U13(X)
    isNeList(mark(X)) -> isNeList(X)
    isNeList(active(X)) -> isNeList(X)
    U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
    U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
    U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
    U21(active(X1),X2,X3) -> U21(X1,X2,X3)
    U21(X1,active(X2),X3) -> U21(X1,X2,X3)
    U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
    U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
    U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
    U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
    U22(active(X1),X2,X3) -> U22(X1,X2,X3)
    U22(X1,active(X2),X3) -> U22(X1,X2,X3)
    U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
    U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
    U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
    U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
    U23(active(X1),X2,X3) -> U23(X1,X2,X3)
    U23(X1,active(X2),X3) -> U23(X1,X2,X3)
    U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
    U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
    U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
    U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
    U24(active(X1),X2,X3) -> U24(X1,X2,X3)
    U24(X1,active(X2),X3) -> U24(X1,X2,X3)
    U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
    U25(mark(X1),X2) -> U25(X1,X2)
    U25(X1,mark(X2)) -> U25(X1,X2)
    U25(active(X1),X2) -> U25(X1,X2)
    U25(X1,active(X2)) -> U25(X1,X2)
    isList(mark(X)) -> isList(X)
    isList(active(X)) -> isList(X)
    U26(mark(X)) -> U26(X)
    U26(active(X)) -> U26(X)
    U31(mark(X1),X2) -> U31(X1,X2)
    U31(X1,mark(X2)) -> U31(X1,X2)
    U31(active(X1),X2) -> U31(X1,X2)
    U31(X1,active(X2)) -> U31(X1,X2)
    U32(mark(X1),X2) -> U32(X1,X2)
    U32(X1,mark(X2)) -> U32(X1,X2)
    U32(active(X1),X2) -> U32(X1,X2)
    U32(X1,active(X2)) -> U32(X1,X2)
    U33(mark(X)) -> U33(X)
    U33(active(X)) -> U33(X)
    isQid(mark(X)) -> isQid(X)
    isQid(active(X)) -> isQid(X)
    U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
    U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
    U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
    U41(active(X1),X2,X3) -> U41(X1,X2,X3)
    U41(X1,active(X2),X3) -> U41(X1,X2,X3)
    U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
    U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
    U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
    U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
    U42(active(X1),X2,X3) -> U42(X1,X2,X3)
    U42(X1,active(X2),X3) -> U42(X1,X2,X3)
    U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
    U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
    U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
    U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
    U43(active(X1),X2,X3) -> U43(X1,X2,X3)
    U43(X1,active(X2),X3) -> U43(X1,X2,X3)
    U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
    U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
    U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
    U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
    U44(active(X1),X2,X3) -> U44(X1,X2,X3)
    U44(X1,active(X2),X3) -> U44(X1,X2,X3)
    U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
    U45(mark(X1),X2) -> U45(X1,X2)
    U45(X1,mark(X2)) -> U45(X1,X2)
    U45(active(X1),X2) -> U45(X1,X2)
    U45(X1,active(X2)) -> U45(X1,X2)
    U46(mark(X)) -> U46(X)
    U46(active(X)) -> U46(X)
    U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
    U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
    U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
    U51(active(X1),X2,X3) -> U51(X1,X2,X3)
    U51(X1,active(X2),X3) -> U51(X1,X2,X3)
    U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
    U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
    U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
    U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
    U52(active(X1),X2,X3) -> U52(X1,X2,X3)
    U52(X1,active(X2),X3) -> U52(X1,X2,X3)
    U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
    U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
    U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
    U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
    U53(active(X1),X2,X3) -> U53(X1,X2,X3)
    U53(X1,active(X2),X3) -> U53(X1,X2,X3)
    U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
    U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
    U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
    U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
    U54(active(X1),X2,X3) -> U54(X1,X2,X3)
    U54(X1,active(X2),X3) -> U54(X1,X2,X3)
    U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
    U55(mark(X1),X2) -> U55(X1,X2)
    U55(X1,mark(X2)) -> U55(X1,X2)
    U55(active(X1),X2) -> U55(X1,X2)
    U55(X1,active(X2)) -> U55(X1,X2)
    U56(mark(X)) -> U56(X)
    U56(active(X)) -> U56(X)
    U61(mark(X1),X2) -> U61(X1,X2)
    U61(X1,mark(X2)) -> U61(X1,X2)
    U61(active(X1),X2) -> U61(X1,X2)
    U61(X1,active(X2)) -> U61(X1,X2)
    U62(mark(X1),X2) -> U62(X1,X2)
    U62(X1,mark(X2)) -> U62(X1,X2)
    U62(active(X1),X2) -> U62(X1,X2)
    U62(X1,active(X2)) -> U62(X1,X2)
    U63(mark(X)) -> U63(X)
    U63(active(X)) -> U63(X)
    U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
    U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
    U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
    U71(active(X1),X2,X3) -> U71(X1,X2,X3)
    U71(X1,active(X2),X3) -> U71(X1,X2,X3)
    U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
    U72(mark(X1),X2) -> U72(X1,X2)
    U72(X1,mark(X2)) -> U72(X1,X2)
    U72(active(X1),X2) -> U72(X1,X2)
    U72(X1,active(X2)) -> U72(X1,X2)
    U73(mark(X1),X2) -> U73(X1,X2)
    U73(X1,mark(X2)) -> U73(X1,X2)
    U73(active(X1),X2) -> U73(X1,X2)
    U73(X1,active(X2)) -> U73(X1,X2)
    isPal(mark(X)) -> isPal(X)
    isPal(active(X)) -> isPal(X)
    U74(mark(X)) -> U74(X)
    U74(active(X)) -> U74(X)
    U81(mark(X1),X2) -> U81(X1,X2)
    U81(X1,mark(X2)) -> U81(X1,X2)
    U81(active(X1),X2) -> U81(X1,X2)
    U81(X1,active(X2)) -> U81(X1,X2)
    U82(mark(X1),X2) -> U82(X1,X2)
    U82(X1,mark(X2)) -> U82(X1,X2)
    U82(active(X1),X2) -> U82(X1,X2)
    U82(X1,active(X2)) -> U82(X1,X2)
    U83(mark(X)) -> U83(X)
    U83(active(X)) -> U83(X)
    isNePal(mark(X)) -> isNePal(X)
    isNePal(active(X)) -> isNePal(X)
    U91(mark(X1),X2) -> U91(X1,X2)
    U91(X1,mark(X2)) -> U91(X1,X2)
    U91(active(X1),X2) -> U91(X1,X2)
    U91(X1,active(X2)) -> U91(X1,X2)
    U92(mark(X)) -> U92(X)
    U92(active(X)) -> U92(X)
   graph:
    ...
   Restore Modifier:
    DPs:
     active#(__(__(X,Y),Z)) -> __#(Y,Z)
     active#(__(__(X,Y),Z)) -> __#(X,__(Y,Z))
     active#(__(__(X,Y),Z)) -> mark#(__(X,__(Y,Z)))
     active#(__(X,nil())) -> mark#(X)
     active#(__(nil(),X)) -> mark#(X)
     active#(U11(tt(),V)) -> isPalListKind#(V)
     active#(U11(tt(),V)) -> U12#(isPalListKind(V),V)
     active#(U11(tt(),V)) -> mark#(U12(isPalListKind(V),V))
     active#(U12(tt(),V)) -> isNeList#(V)
     active#(U12(tt(),V)) -> U13#(isNeList(V))
     active#(U12(tt(),V)) -> mark#(U13(isNeList(V)))
     active#(U13(tt())) -> mark#(tt())
     active#(U21(tt(),V1,V2)) -> isPalListKind#(V1)
     active#(U21(tt(),V1,V2)) -> U22#(isPalListKind(V1),V1,V2)
     active#(U21(tt(),V1,V2)) -> mark#(U22(isPalListKind(V1),V1,V2))
     active#(U22(tt(),V1,V2)) -> isPalListKind#(V2)
     active#(U22(tt(),V1,V2)) -> U23#(isPalListKind(V2),V1,V2)
     active#(U22(tt(),V1,V2)) -> mark#(U23(isPalListKind(V2),V1,V2))
     active#(U23(tt(),V1,V2)) -> isPalListKind#(V2)
     active#(U23(tt(),V1,V2)) -> U24#(isPalListKind(V2),V1,V2)
     active#(U23(tt(),V1,V2)) -> mark#(U24(isPalListKind(V2),V1,V2))
     active#(U24(tt(),V1,V2)) -> isList#(V1)
     active#(U24(tt(),V1,V2)) -> U25#(isList(V1),V2)
     active#(U24(tt(),V1,V2)) -> mark#(U25(isList(V1),V2))
     active#(U25(tt(),V2)) -> isList#(V2)
     active#(U25(tt(),V2)) -> U26#(isList(V2))
     active#(U25(tt(),V2)) -> mark#(U26(isList(V2)))
     active#(U26(tt())) -> mark#(tt())
     active#(U31(tt(),V)) -> isPalListKind#(V)
     active#(U31(tt(),V)) -> U32#(isPalListKind(V),V)
     active#(U31(tt(),V)) -> mark#(U32(isPalListKind(V),V))
     active#(U32(tt(),V)) -> isQid#(V)
     active#(U32(tt(),V)) -> U33#(isQid(V))
     active#(U32(tt(),V)) -> mark#(U33(isQid(V)))
     active#(U33(tt())) -> mark#(tt())
     active#(U41(tt(),V1,V2)) -> isPalListKind#(V1)
     active#(U41(tt(),V1,V2)) -> U42#(isPalListKind(V1),V1,V2)
     active#(U41(tt(),V1,V2)) -> mark#(U42(isPalListKind(V1),V1,V2))
     active#(U42(tt(),V1,V2)) -> isPalListKind#(V2)
     active#(U42(tt(),V1,V2)) -> U43#(isPalListKind(V2),V1,V2)
     active#(U42(tt(),V1,V2)) -> mark#(U43(isPalListKind(V2),V1,V2))
     active#(U43(tt(),V1,V2)) -> isPalListKind#(V2)
     active#(U43(tt(),V1,V2)) -> U44#(isPalListKind(V2),V1,V2)
     active#(U43(tt(),V1,V2)) -> mark#(U44(isPalListKind(V2),V1,V2))
     active#(U44(tt(),V1,V2)) -> isList#(V1)
     active#(U44(tt(),V1,V2)) -> U45#(isList(V1),V2)
     active#(U44(tt(),V1,V2)) -> mark#(U45(isList(V1),V2))
     active#(U45(tt(),V2)) -> isNeList#(V2)
     active#(U45(tt(),V2)) -> U46#(isNeList(V2))
     active#(U45(tt(),V2)) -> mark#(U46(isNeList(V2)))
     active#(U46(tt())) -> mark#(tt())
     active#(U51(tt(),V1,V2)) -> isPalListKind#(V1)
     active#(U51(tt(),V1,V2)) -> U52#(isPalListKind(V1),V1,V2)
     active#(U51(tt(),V1,V2)) -> mark#(U52(isPalListKind(V1),V1,V2))
     active#(U52(tt(),V1,V2)) -> isPalListKind#(V2)
     active#(U52(tt(),V1,V2)) -> U53#(isPalListKind(V2),V1,V2)
     active#(U52(tt(),V1,V2)) -> mark#(U53(isPalListKind(V2),V1,V2))
     active#(U53(tt(),V1,V2)) -> isPalListKind#(V2)
     active#(U53(tt(),V1,V2)) -> U54#(isPalListKind(V2),V1,V2)
     active#(U53(tt(),V1,V2)) -> mark#(U54(isPalListKind(V2),V1,V2))
     active#(U54(tt(),V1,V2)) -> isNeList#(V1)
     active#(U54(tt(),V1,V2)) -> U55#(isNeList(V1),V2)
     active#(U54(tt(),V1,V2)) -> mark#(U55(isNeList(V1),V2))
     active#(U55(tt(),V2)) -> isList#(V2)
     active#(U55(tt(),V2)) -> U56#(isList(V2))
     active#(U55(tt(),V2)) -> mark#(U56(isList(V2)))
     active#(U56(tt())) -> mark#(tt())
     active#(U61(tt(),V)) -> isPalListKind#(V)
     active#(U61(tt(),V)) -> U62#(isPalListKind(V),V)
     active#(U61(tt(),V)) -> mark#(U62(isPalListKind(V),V))
     active#(U62(tt(),V)) -> isQid#(V)
     active#(U62(tt(),V)) -> U63#(isQid(V))
     active#(U62(tt(),V)) -> mark#(U63(isQid(V)))
     active#(U63(tt())) -> mark#(tt())
     active#(U71(tt(),I,P)) -> isPalListKind#(I)
     active#(U71(tt(),I,P)) -> U72#(isPalListKind(I),P)
     active#(U71(tt(),I,P)) -> mark#(U72(isPalListKind(I),P))
     active#(U72(tt(),P)) -> isPal#(P)
     active#(U72(tt(),P)) -> U73#(isPal(P),P)
     active#(U72(tt(),P)) -> mark#(U73(isPal(P),P))
     active#(U73(tt(),P)) -> isPalListKind#(P)
     active#(U73(tt(),P)) -> U74#(isPalListKind(P))
     active#(U73(tt(),P)) -> mark#(U74(isPalListKind(P)))
     active#(U74(tt())) -> mark#(tt())
     active#(U81(tt(),V)) -> isPalListKind#(V)
     active#(U81(tt(),V)) -> U82#(isPalListKind(V),V)
     active#(U81(tt(),V)) -> mark#(U82(isPalListKind(V),V))
     active#(U82(tt(),V)) -> isNePal#(V)
     active#(U82(tt(),V)) -> U83#(isNePal(V))
     active#(U82(tt(),V)) -> mark#(U83(isNePal(V)))
     active#(U83(tt())) -> mark#(tt())
     active#(U91(tt(),V2)) -> isPalListKind#(V2)
     active#(U91(tt(),V2)) -> U92#(isPalListKind(V2))
     active#(U91(tt(),V2)) -> mark#(U92(isPalListKind(V2)))
     active#(U92(tt())) -> mark#(tt())
     active#(isList(V)) -> isPalListKind#(V)
     active#(isList(V)) -> U11#(isPalListKind(V),V)
     active#(isList(V)) -> mark#(U11(isPalListKind(V),V))
     active#(isList(nil())) -> mark#(tt())
     active#(isList(__(V1,V2))) -> isPalListKind#(V1)
     active#(isList(__(V1,V2))) -> U21#(isPalListKind(V1),V1,V2)
     active#(isList(__(V1,V2))) -> mark#(U21(isPalListKind(V1),V1,V2))
     active#(isNeList(V)) -> isPalListKind#(V)
     active#(isNeList(V)) -> U31#(isPalListKind(V),V)
     active#(isNeList(V)) -> mark#(U31(isPalListKind(V),V))
     active#(isNeList(__(V1,V2))) -> isPalListKind#(V1)
     active#(isNeList(__(V1,V2))) -> U41#(isPalListKind(V1),V1,V2)
     active#(isNeList(__(V1,V2))) -> mark#(U41(isPalListKind(V1),V1,V2))
     active#(isNeList(__(V1,V2))) -> U51#(isPalListKind(V1),V1,V2)
     active#(isNeList(__(V1,V2))) -> mark#(U51(isPalListKind(V1),V1,V2))
     active#(isNePal(V)) -> isPalListKind#(V)
     active#(isNePal(V)) -> U61#(isPalListKind(V),V)
     active#(isNePal(V)) -> mark#(U61(isPalListKind(V),V))
     active#(isNePal(__(I,__(P,I)))) -> isQid#(I)
     active#(isNePal(__(I,__(P,I)))) -> U71#(isQid(I),I,P)
     active#(isNePal(__(I,__(P,I)))) -> mark#(U71(isQid(I),I,P))
     active#(isPal(V)) -> isPalListKind#(V)
     active#(isPal(V)) -> U81#(isPalListKind(V),V)
     active#(isPal(V)) -> mark#(U81(isPalListKind(V),V))
     active#(isPal(nil())) -> mark#(tt())
     active#(isPalListKind(a())) -> mark#(tt())
     active#(isPalListKind(e())) -> mark#(tt())
     active#(isPalListKind(i())) -> mark#(tt())
     active#(isPalListKind(nil())) -> mark#(tt())
     active#(isPalListKind(o())) -> mark#(tt())
     active#(isPalListKind(u())) -> mark#(tt())
     active#(isPalListKind(__(V1,V2))) -> isPalListKind#(V1)
     active#(isPalListKind(__(V1,V2))) -> U91#(isPalListKind(V1),V2)
     active#(isPalListKind(__(V1,V2))) -> mark#(U91(isPalListKind(V1),V2))
     active#(isQid(a())) -> mark#(tt())
     active#(isQid(e())) -> mark#(tt())
     active#(isQid(i())) -> mark#(tt())
     active#(isQid(o())) -> mark#(tt())
     active#(isQid(u())) -> mark#(tt())
     mark#(__(X1,X2)) -> mark#(X2)
     mark#(__(X1,X2)) -> mark#(X1)
     mark#(__(X1,X2)) -> __#(mark(X1),mark(X2))
     mark#(__(X1,X2)) -> active#(__(mark(X1),mark(X2)))
     mark#(nil()) -> active#(nil())
     mark#(U11(X1,X2)) -> mark#(X1)
     mark#(U11(X1,X2)) -> U11#(mark(X1),X2)
     mark#(U11(X1,X2)) -> active#(U11(mark(X1),X2))
     mark#(tt()) -> active#(tt())
     mark#(U12(X1,X2)) -> mark#(X1)
     mark#(U12(X1,X2)) -> U12#(mark(X1),X2)
     mark#(U12(X1,X2)) -> active#(U12(mark(X1),X2))
     mark#(isPalListKind(X)) -> active#(isPalListKind(X))
     mark#(U13(X)) -> mark#(X)
     mark#(U13(X)) -> U13#(mark(X))
     mark#(U13(X)) -> active#(U13(mark(X)))
     mark#(isNeList(X)) -> active#(isNeList(X))
     mark#(U21(X1,X2,X3)) -> mark#(X1)
     mark#(U21(X1,X2,X3)) -> U21#(mark(X1),X2,X3)
     mark#(U21(X1,X2,X3)) -> active#(U21(mark(X1),X2,X3))
     mark#(U22(X1,X2,X3)) -> mark#(X1)
     mark#(U22(X1,X2,X3)) -> U22#(mark(X1),X2,X3)
     mark#(U22(X1,X2,X3)) -> active#(U22(mark(X1),X2,X3))
     mark#(U23(X1,X2,X3)) -> mark#(X1)
     mark#(U23(X1,X2,X3)) -> U23#(mark(X1),X2,X3)
     mark#(U23(X1,X2,X3)) -> active#(U23(mark(X1),X2,X3))
     mark#(U24(X1,X2,X3)) -> mark#(X1)
     mark#(U24(X1,X2,X3)) -> U24#(mark(X1),X2,X3)
     mark#(U24(X1,X2,X3)) -> active#(U24(mark(X1),X2,X3))
     mark#(U25(X1,X2)) -> mark#(X1)
     mark#(U25(X1,X2)) -> U25#(mark(X1),X2)
     mark#(U25(X1,X2)) -> active#(U25(mark(X1),X2))
     mark#(isList(X)) -> active#(isList(X))
     mark#(U26(X)) -> mark#(X)
     mark#(U26(X)) -> U26#(mark(X))
     mark#(U26(X)) -> active#(U26(mark(X)))
     mark#(U31(X1,X2)) -> mark#(X1)
     mark#(U31(X1,X2)) -> U31#(mark(X1),X2)
     mark#(U31(X1,X2)) -> active#(U31(mark(X1),X2))
     mark#(U32(X1,X2)) -> mark#(X1)
     mark#(U32(X1,X2)) -> U32#(mark(X1),X2)
     mark#(U32(X1,X2)) -> active#(U32(mark(X1),X2))
     mark#(U33(X)) -> mark#(X)
     mark#(U33(X)) -> U33#(mark(X))
     mark#(U33(X)) -> active#(U33(mark(X)))
     mark#(isQid(X)) -> active#(isQid(X))
     mark#(U41(X1,X2,X3)) -> mark#(X1)
     mark#(U41(X1,X2,X3)) -> U41#(mark(X1),X2,X3)
     mark#(U41(X1,X2,X3)) -> active#(U41(mark(X1),X2,X3))
     mark#(U42(X1,X2,X3)) -> mark#(X1)
     mark#(U42(X1,X2,X3)) -> U42#(mark(X1),X2,X3)
     mark#(U42(X1,X2,X3)) -> active#(U42(mark(X1),X2,X3))
     mark#(U43(X1,X2,X3)) -> mark#(X1)
     mark#(U43(X1,X2,X3)) -> U43#(mark(X1),X2,X3)
     mark#(U43(X1,X2,X3)) -> active#(U43(mark(X1),X2,X3))
     mark#(U44(X1,X2,X3)) -> mark#(X1)
     mark#(U44(X1,X2,X3)) -> U44#(mark(X1),X2,X3)
     mark#(U44(X1,X2,X3)) -> active#(U44(mark(X1),X2,X3))
     mark#(U45(X1,X2)) -> mark#(X1)
     mark#(U45(X1,X2)) -> U45#(mark(X1),X2)
     mark#(U45(X1,X2)) -> active#(U45(mark(X1),X2))
     mark#(U46(X)) -> mark#(X)
     mark#(U46(X)) -> U46#(mark(X))
     mark#(U46(X)) -> active#(U46(mark(X)))
     mark#(U51(X1,X2,X3)) -> mark#(X1)
     mark#(U51(X1,X2,X3)) -> U51#(mark(X1),X2,X3)
     mark#(U51(X1,X2,X3)) -> active#(U51(mark(X1),X2,X3))
     mark#(U52(X1,X2,X3)) -> mark#(X1)
     mark#(U52(X1,X2,X3)) -> U52#(mark(X1),X2,X3)
     mark#(U52(X1,X2,X3)) -> active#(U52(mark(X1),X2,X3))
     mark#(U53(X1,X2,X3)) -> mark#(X1)
     mark#(U53(X1,X2,X3)) -> U53#(mark(X1),X2,X3)
     mark#(U53(X1,X2,X3)) -> active#(U53(mark(X1),X2,X3))
     mark#(U54(X1,X2,X3)) -> mark#(X1)
     mark#(U54(X1,X2,X3)) -> U54#(mark(X1),X2,X3)
     mark#(U54(X1,X2,X3)) -> active#(U54(mark(X1),X2,X3))
     mark#(U55(X1,X2)) -> mark#(X1)
     mark#(U55(X1,X2)) -> U55#(mark(X1),X2)
     mark#(U55(X1,X2)) -> active#(U55(mark(X1),X2))
     mark#(U56(X)) -> mark#(X)
     mark#(U56(X)) -> U56#(mark(X))
     mark#(U56(X)) -> active#(U56(mark(X)))
     mark#(U61(X1,X2)) -> mark#(X1)
     mark#(U61(X1,X2)) -> U61#(mark(X1),X2)
     mark#(U61(X1,X2)) -> active#(U61(mark(X1),X2))
     mark#(U62(X1,X2)) -> mark#(X1)
     mark#(U62(X1,X2)) -> U62#(mark(X1),X2)
     mark#(U62(X1,X2)) -> active#(U62(mark(X1),X2))
     mark#(U63(X)) -> mark#(X)
     mark#(U63(X)) -> U63#(mark(X))
     mark#(U63(X)) -> active#(U63(mark(X)))
     mark#(U71(X1,X2,X3)) -> mark#(X1)
     mark#(U71(X1,X2,X3)) -> U71#(mark(X1),X2,X3)
     mark#(U71(X1,X2,X3)) -> active#(U71(mark(X1),X2,X3))
     mark#(U72(X1,X2)) -> mark#(X1)
     mark#(U72(X1,X2)) -> U72#(mark(X1),X2)
     mark#(U72(X1,X2)) -> active#(U72(mark(X1),X2))
     mark#(U73(X1,X2)) -> mark#(X1)
     mark#(U73(X1,X2)) -> U73#(mark(X1),X2)
     mark#(U73(X1,X2)) -> active#(U73(mark(X1),X2))
     mark#(isPal(X)) -> active#(isPal(X))
     mark#(U74(X)) -> mark#(X)
     mark#(U74(X)) -> U74#(mark(X))
     mark#(U74(X)) -> active#(U74(mark(X)))
     mark#(U81(X1,X2)) -> mark#(X1)
     mark#(U81(X1,X2)) -> U81#(mark(X1),X2)
     mark#(U81(X1,X2)) -> active#(U81(mark(X1),X2))
     mark#(U82(X1,X2)) -> mark#(X1)
     mark#(U82(X1,X2)) -> U82#(mark(X1),X2)
     mark#(U82(X1,X2)) -> active#(U82(mark(X1),X2))
     mark#(U83(X)) -> mark#(X)
     mark#(U83(X)) -> U83#(mark(X))
     mark#(U83(X)) -> active#(U83(mark(X)))
     mark#(isNePal(X)) -> active#(isNePal(X))
     mark#(U91(X1,X2)) -> mark#(X1)
     mark#(U91(X1,X2)) -> U91#(mark(X1),X2)
     mark#(U91(X1,X2)) -> active#(U91(mark(X1),X2))
     mark#(U92(X)) -> mark#(X)
     mark#(U92(X)) -> U92#(mark(X))
     mark#(U92(X)) -> active#(U92(mark(X)))
     mark#(a()) -> active#(a())
     mark#(e()) -> active#(e())
     mark#(i()) -> active#(i())
     mark#(o()) -> active#(o())
     mark#(u()) -> active#(u())
     __#(mark(X1),X2) -> __#(X1,X2)
     __#(X1,mark(X2)) -> __#(X1,X2)
     __#(active(X1),X2) -> __#(X1,X2)
     __#(X1,active(X2)) -> __#(X1,X2)
     U11#(mark(X1),X2) -> U11#(X1,X2)
     U11#(X1,mark(X2)) -> U11#(X1,X2)
     U11#(active(X1),X2) -> U11#(X1,X2)
     U11#(X1,active(X2)) -> U11#(X1,X2)
     U12#(mark(X1),X2) -> U12#(X1,X2)
     U12#(X1,mark(X2)) -> U12#(X1,X2)
     U12#(active(X1),X2) -> U12#(X1,X2)
     U12#(X1,active(X2)) -> U12#(X1,X2)
     isPalListKind#(mark(X)) -> isPalListKind#(X)
     isPalListKind#(active(X)) -> isPalListKind#(X)
     U13#(mark(X)) -> U13#(X)
     U13#(active(X)) -> U13#(X)
     isNeList#(mark(X)) -> isNeList#(X)
     isNeList#(active(X)) -> isNeList#(X)
     U21#(mark(X1),X2,X3) -> U21#(X1,X2,X3)
     U21#(X1,mark(X2),X3) -> U21#(X1,X2,X3)
     U21#(X1,X2,mark(X3)) -> U21#(X1,X2,X3)
     U21#(active(X1),X2,X3) -> U21#(X1,X2,X3)
     U21#(X1,active(X2),X3) -> U21#(X1,X2,X3)
     U21#(X1,X2,active(X3)) -> U21#(X1,X2,X3)
     U22#(mark(X1),X2,X3) -> U22#(X1,X2,X3)
     U22#(X1,mark(X2),X3) -> U22#(X1,X2,X3)
     U22#(X1,X2,mark(X3)) -> U22#(X1,X2,X3)
     U22#(active(X1),X2,X3) -> U22#(X1,X2,X3)
     U22#(X1,active(X2),X3) -> U22#(X1,X2,X3)
     U22#(X1,X2,active(X3)) -> U22#(X1,X2,X3)
     U23#(mark(X1),X2,X3) -> U23#(X1,X2,X3)
     U23#(X1,mark(X2),X3) -> U23#(X1,X2,X3)
     U23#(X1,X2,mark(X3)) -> U23#(X1,X2,X3)
     U23#(active(X1),X2,X3) -> U23#(X1,X2,X3)
     U23#(X1,active(X2),X3) -> U23#(X1,X2,X3)
     U23#(X1,X2,active(X3)) -> U23#(X1,X2,X3)
     U24#(mark(X1),X2,X3) -> U24#(X1,X2,X3)
     U24#(X1,mark(X2),X3) -> U24#(X1,X2,X3)
     U24#(X1,X2,mark(X3)) -> U24#(X1,X2,X3)
     U24#(active(X1),X2,X3) -> U24#(X1,X2,X3)
     U24#(X1,active(X2),X3) -> U24#(X1,X2,X3)
     U24#(X1,X2,active(X3)) -> U24#(X1,X2,X3)
     U25#(mark(X1),X2) -> U25#(X1,X2)
     U25#(X1,mark(X2)) -> U25#(X1,X2)
     U25#(active(X1),X2) -> U25#(X1,X2)
     U25#(X1,active(X2)) -> U25#(X1,X2)
     isList#(mark(X)) -> isList#(X)
     isList#(active(X)) -> isList#(X)
     U26#(mark(X)) -> U26#(X)
     U26#(active(X)) -> U26#(X)
     U31#(mark(X1),X2) -> U31#(X1,X2)
     U31#(X1,mark(X2)) -> U31#(X1,X2)
     U31#(active(X1),X2) -> U31#(X1,X2)
     U31#(X1,active(X2)) -> U31#(X1,X2)
     U32#(mark(X1),X2) -> U32#(X1,X2)
     U32#(X1,mark(X2)) -> U32#(X1,X2)
     U32#(active(X1),X2) -> U32#(X1,X2)
     U32#(X1,active(X2)) -> U32#(X1,X2)
     U33#(mark(X)) -> U33#(X)
     U33#(active(X)) -> U33#(X)
     isQid#(mark(X)) -> isQid#(X)
     isQid#(active(X)) -> isQid#(X)
     U41#(mark(X1),X2,X3) -> U41#(X1,X2,X3)
     U41#(X1,mark(X2),X3) -> U41#(X1,X2,X3)
     U41#(X1,X2,mark(X3)) -> U41#(X1,X2,X3)
     U41#(active(X1),X2,X3) -> U41#(X1,X2,X3)
     U41#(X1,active(X2),X3) -> U41#(X1,X2,X3)
     U41#(X1,X2,active(X3)) -> U41#(X1,X2,X3)
     U42#(mark(X1),X2,X3) -> U42#(X1,X2,X3)
     U42#(X1,mark(X2),X3) -> U42#(X1,X2,X3)
     U42#(X1,X2,mark(X3)) -> U42#(X1,X2,X3)
     U42#(active(X1),X2,X3) -> U42#(X1,X2,X3)
     U42#(X1,active(X2),X3) -> U42#(X1,X2,X3)
     U42#(X1,X2,active(X3)) -> U42#(X1,X2,X3)
     U43#(mark(X1),X2,X3) -> U43#(X1,X2,X3)
     U43#(X1,mark(X2),X3) -> U43#(X1,X2,X3)
     U43#(X1,X2,mark(X3)) -> U43#(X1,X2,X3)
     U43#(active(X1),X2,X3) -> U43#(X1,X2,X3)
     U43#(X1,active(X2),X3) -> U43#(X1,X2,X3)
     U43#(X1,X2,active(X3)) -> U43#(X1,X2,X3)
     U44#(mark(X1),X2,X3) -> U44#(X1,X2,X3)
     U44#(X1,mark(X2),X3) -> U44#(X1,X2,X3)
     U44#(X1,X2,mark(X3)) -> U44#(X1,X2,X3)
     U44#(active(X1),X2,X3) -> U44#(X1,X2,X3)
     U44#(X1,active(X2),X3) -> U44#(X1,X2,X3)
     U44#(X1,X2,active(X3)) -> U44#(X1,X2,X3)
     U45#(mark(X1),X2) -> U45#(X1,X2)
     U45#(X1,mark(X2)) -> U45#(X1,X2)
     U45#(active(X1),X2) -> U45#(X1,X2)
     U45#(X1,active(X2)) -> U45#(X1,X2)
     U46#(mark(X)) -> U46#(X)
     U46#(active(X)) -> U46#(X)
     U51#(mark(X1),X2,X3) -> U51#(X1,X2,X3)
     U51#(X1,mark(X2),X3) -> U51#(X1,X2,X3)
     U51#(X1,X2,mark(X3)) -> U51#(X1,X2,X3)
     U51#(active(X1),X2,X3) -> U51#(X1,X2,X3)
     U51#(X1,active(X2),X3) -> U51#(X1,X2,X3)
     U51#(X1,X2,active(X3)) -> U51#(X1,X2,X3)
     U52#(mark(X1),X2,X3) -> U52#(X1,X2,X3)
     U52#(X1,mark(X2),X3) -> U52#(X1,X2,X3)
     U52#(X1,X2,mark(X3)) -> U52#(X1,X2,X3)
     U52#(active(X1),X2,X3) -> U52#(X1,X2,X3)
     U52#(X1,active(X2),X3) -> U52#(X1,X2,X3)
     U52#(X1,X2,active(X3)) -> U52#(X1,X2,X3)
     U53#(mark(X1),X2,X3) -> U53#(X1,X2,X3)
     U53#(X1,mark(X2),X3) -> U53#(X1,X2,X3)
     U53#(X1,X2,mark(X3)) -> U53#(X1,X2,X3)
     U53#(active(X1),X2,X3) -> U53#(X1,X2,X3)
     U53#(X1,active(X2),X3) -> U53#(X1,X2,X3)
     U53#(X1,X2,active(X3)) -> U53#(X1,X2,X3)
     U54#(mark(X1),X2,X3) -> U54#(X1,X2,X3)
     U54#(X1,mark(X2),X3) -> U54#(X1,X2,X3)
     U54#(X1,X2,mark(X3)) -> U54#(X1,X2,X3)
     U54#(active(X1),X2,X3) -> U54#(X1,X2,X3)
     U54#(X1,active(X2),X3) -> U54#(X1,X2,X3)
     U54#(X1,X2,active(X3)) -> U54#(X1,X2,X3)
     U55#(mark(X1),X2) -> U55#(X1,X2)
     U55#(X1,mark(X2)) -> U55#(X1,X2)
     U55#(active(X1),X2) -> U55#(X1,X2)
     U55#(X1,active(X2)) -> U55#(X1,X2)
     U56#(mark(X)) -> U56#(X)
     U56#(active(X)) -> U56#(X)
     U61#(mark(X1),X2) -> U61#(X1,X2)
     U61#(X1,mark(X2)) -> U61#(X1,X2)
     U61#(active(X1),X2) -> U61#(X1,X2)
     U61#(X1,active(X2)) -> U61#(X1,X2)
     U62#(mark(X1),X2) -> U62#(X1,X2)
     U62#(X1,mark(X2)) -> U62#(X1,X2)
     U62#(active(X1),X2) -> U62#(X1,X2)
     U62#(X1,active(X2)) -> U62#(X1,X2)
     U63#(mark(X)) -> U63#(X)
     U63#(active(X)) -> U63#(X)
     U71#(mark(X1),X2,X3) -> U71#(X1,X2,X3)
     U71#(X1,mark(X2),X3) -> U71#(X1,X2,X3)
     U71#(X1,X2,mark(X3)) -> U71#(X1,X2,X3)
     U71#(active(X1),X2,X3) -> U71#(X1,X2,X3)
     U71#(X1,active(X2),X3) -> U71#(X1,X2,X3)
     U71#(X1,X2,active(X3)) -> U71#(X1,X2,X3)
     U72#(mark(X1),X2) -> U72#(X1,X2)
     U72#(X1,mark(X2)) -> U72#(X1,X2)
     U72#(active(X1),X2) -> U72#(X1,X2)
     U72#(X1,active(X2)) -> U72#(X1,X2)
     U73#(mark(X1),X2) -> U73#(X1,X2)
     U73#(X1,mark(X2)) -> U73#(X1,X2)
     U73#(active(X1),X2) -> U73#(X1,X2)
     U73#(X1,active(X2)) -> U73#(X1,X2)
     isPal#(mark(X)) -> isPal#(X)
     isPal#(active(X)) -> isPal#(X)
     U74#(mark(X)) -> U74#(X)
     U74#(active(X)) -> U74#(X)
     U81#(mark(X1),X2) -> U81#(X1,X2)
     U81#(X1,mark(X2)) -> U81#(X1,X2)
     U81#(active(X1),X2) -> U81#(X1,X2)
     U81#(X1,active(X2)) -> U81#(X1,X2)
     U82#(mark(X1),X2) -> U82#(X1,X2)
     U82#(X1,mark(X2)) -> U82#(X1,X2)
     U82#(active(X1),X2) -> U82#(X1,X2)
     U82#(X1,active(X2)) -> U82#(X1,X2)
     U83#(mark(X)) -> U83#(X)
     U83#(active(X)) -> U83#(X)
     isNePal#(mark(X)) -> isNePal#(X)
     isNePal#(active(X)) -> isNePal#(X)
     U91#(mark(X1),X2) -> U91#(X1,X2)
     U91#(X1,mark(X2)) -> U91#(X1,X2)
     U91#(active(X1),X2) -> U91#(X1,X2)
     U91#(X1,active(X2)) -> U91#(X1,X2)
     U92#(mark(X)) -> U92#(X)
     U92#(active(X)) -> U92#(X)
    TRS:
     active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
     active(__(X,nil())) -> mark(X)
     active(__(nil(),X)) -> mark(X)
     active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
     active(U12(tt(),V)) -> mark(U13(isNeList(V)))
     active(U13(tt())) -> mark(tt())
     active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
     active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
     active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
     active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
     active(U25(tt(),V2)) -> mark(U26(isList(V2)))
     active(U26(tt())) -> mark(tt())
     active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
     active(U32(tt(),V)) -> mark(U33(isQid(V)))
     active(U33(tt())) -> mark(tt())
     active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
     active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
     active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
     active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
     active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
     active(U46(tt())) -> mark(tt())
     active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
     active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
     active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
     active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
     active(U55(tt(),V2)) -> mark(U56(isList(V2)))
     active(U56(tt())) -> mark(tt())
     active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
     active(U62(tt(),V)) -> mark(U63(isQid(V)))
     active(U63(tt())) -> mark(tt())
     active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
     active(U72(tt(),P)) -> mark(U73(isPal(P),P))
     active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
     active(U74(tt())) -> mark(tt())
     active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
     active(U82(tt(),V)) -> mark(U83(isNePal(V)))
     active(U83(tt())) -> mark(tt())
     active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
     active(U92(tt())) -> mark(tt())
     active(isList(V)) -> mark(U11(isPalListKind(V),V))
     active(isList(nil())) -> mark(tt())
     active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
     active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
     active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
     active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
     active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
     active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
     active(isPal(V)) -> mark(U81(isPalListKind(V),V))
     active(isPal(nil())) -> mark(tt())
     active(isPalListKind(a())) -> mark(tt())
     active(isPalListKind(e())) -> mark(tt())
     active(isPalListKind(i())) -> mark(tt())
     active(isPalListKind(nil())) -> mark(tt())
     active(isPalListKind(o())) -> mark(tt())
     active(isPalListKind(u())) -> mark(tt())
     active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
     active(isQid(a())) -> mark(tt())
     active(isQid(e())) -> mark(tt())
     active(isQid(i())) -> mark(tt())
     active(isQid(o())) -> mark(tt())
     active(isQid(u())) -> mark(tt())
     mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
     mark(nil()) -> active(nil())
     mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
     mark(tt()) -> active(tt())
     mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
     mark(isPalListKind(X)) -> active(isPalListKind(X))
     mark(U13(X)) -> active(U13(mark(X)))
     mark(isNeList(X)) -> active(isNeList(X))
     mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
     mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
     mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
     mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
     mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
     mark(isList(X)) -> active(isList(X))
     mark(U26(X)) -> active(U26(mark(X)))
     mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
     mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
     mark(U33(X)) -> active(U33(mark(X)))
     mark(isQid(X)) -> active(isQid(X))
     mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
     mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
     mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
     mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
     mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
     mark(U46(X)) -> active(U46(mark(X)))
     mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
     mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
     mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
     mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
     mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
     mark(U56(X)) -> active(U56(mark(X)))
     mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
     mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
     mark(U63(X)) -> active(U63(mark(X)))
     mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
     mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
     mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
     mark(isPal(X)) -> active(isPal(X))
     mark(U74(X)) -> active(U74(mark(X)))
     mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
     mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
     mark(U83(X)) -> active(U83(mark(X)))
     mark(isNePal(X)) -> active(isNePal(X))
     mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
     mark(U92(X)) -> active(U92(mark(X)))
     mark(a()) -> active(a())
     mark(e()) -> active(e())
     mark(i()) -> active(i())
     mark(o()) -> active(o())
     mark(u()) -> active(u())
     __(mark(X1),X2) -> __(X1,X2)
     __(X1,mark(X2)) -> __(X1,X2)
     __(active(X1),X2) -> __(X1,X2)
     __(X1,active(X2)) -> __(X1,X2)
     U11(mark(X1),X2) -> U11(X1,X2)
     U11(X1,mark(X2)) -> U11(X1,X2)
     U11(active(X1),X2) -> U11(X1,X2)
     U11(X1,active(X2)) -> U11(X1,X2)
     U12(mark(X1),X2) -> U12(X1,X2)
     U12(X1,mark(X2)) -> U12(X1,X2)
     U12(active(X1),X2) -> U12(X1,X2)
     U12(X1,active(X2)) -> U12(X1,X2)
     isPalListKind(mark(X)) -> isPalListKind(X)
     isPalListKind(active(X)) -> isPalListKind(X)
     U13(mark(X)) -> U13(X)
     U13(active(X)) -> U13(X)
     isNeList(mark(X)) -> isNeList(X)
     isNeList(active(X)) -> isNeList(X)
     U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
     U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
     U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
     U21(active(X1),X2,X3) -> U21(X1,X2,X3)
     U21(X1,active(X2),X3) -> U21(X1,X2,X3)
     U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
     U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
     U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
     U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
     U22(active(X1),X2,X3) -> U22(X1,X2,X3)
     U22(X1,active(X2),X3) -> U22(X1,X2,X3)
     U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
     U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
     U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
     U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
     U23(active(X1),X2,X3) -> U23(X1,X2,X3)
     U23(X1,active(X2),X3) -> U23(X1,X2,X3)
     U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
     U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
     U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
     U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
     U24(active(X1),X2,X3) -> U24(X1,X2,X3)
     U24(X1,active(X2),X3) -> U24(X1,X2,X3)
     U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
     U25(mark(X1),X2) -> U25(X1,X2)
     U25(X1,mark(X2)) -> U25(X1,X2)
     U25(active(X1),X2) -> U25(X1,X2)
     U25(X1,active(X2)) -> U25(X1,X2)
     isList(mark(X)) -> isList(X)
     isList(active(X)) -> isList(X)
     U26(mark(X)) -> U26(X)
     U26(active(X)) -> U26(X)
     U31(mark(X1),X2) -> U31(X1,X2)
     U31(X1,mark(X2)) -> U31(X1,X2)
     U31(active(X1),X2) -> U31(X1,X2)
     U31(X1,active(X2)) -> U31(X1,X2)
     U32(mark(X1),X2) -> U32(X1,X2)
     U32(X1,mark(X2)) -> U32(X1,X2)
     U32(active(X1),X2) -> U32(X1,X2)
     U32(X1,active(X2)) -> U32(X1,X2)
     U33(mark(X)) -> U33(X)
     U33(active(X)) -> U33(X)
     isQid(mark(X)) -> isQid(X)
     isQid(active(X)) -> isQid(X)
     U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
     U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
     U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
     U41(active(X1),X2,X3) -> U41(X1,X2,X3)
     U41(X1,active(X2),X3) -> U41(X1,X2,X3)
     U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
     U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
     U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
     U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
     U42(active(X1),X2,X3) -> U42(X1,X2,X3)
     U42(X1,active(X2),X3) -> U42(X1,X2,X3)
     U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
     U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
     U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
     U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
     U43(active(X1),X2,X3) -> U43(X1,X2,X3)
     U43(X1,active(X2),X3) -> U43(X1,X2,X3)
     U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
     U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
     U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
     U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
     U44(active(X1),X2,X3) -> U44(X1,X2,X3)
     U44(X1,active(X2),X3) -> U44(X1,X2,X3)
     U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
     U45(mark(X1),X2) -> U45(X1,X2)
     U45(X1,mark(X2)) -> U45(X1,X2)
     U45(active(X1),X2) -> U45(X1,X2)
     U45(X1,active(X2)) -> U45(X1,X2)
     U46(mark(X)) -> U46(X)
     U46(active(X)) -> U46(X)
     U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
     U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
     U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
     U51(active(X1),X2,X3) -> U51(X1,X2,X3)
     U51(X1,active(X2),X3) -> U51(X1,X2,X3)
     U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
     U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
     U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
     U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
     U52(active(X1),X2,X3) -> U52(X1,X2,X3)
     U52(X1,active(X2),X3) -> U52(X1,X2,X3)
     U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
     U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
     U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
     U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
     U53(active(X1),X2,X3) -> U53(X1,X2,X3)
     U53(X1,active(X2),X3) -> U53(X1,X2,X3)
     U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
     U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
     U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
     U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
     U54(active(X1),X2,X3) -> U54(X1,X2,X3)
     U54(X1,active(X2),X3) -> U54(X1,X2,X3)
     U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
     U55(mark(X1),X2) -> U55(X1,X2)
     U55(X1,mark(X2)) -> U55(X1,X2)
     U55(active(X1),X2) -> U55(X1,X2)
     U55(X1,active(X2)) -> U55(X1,X2)
     U56(mark(X)) -> U56(X)
     U56(active(X)) -> U56(X)
     U61(mark(X1),X2) -> U61(X1,X2)
     U61(X1,mark(X2)) -> U61(X1,X2)
     U61(active(X1),X2) -> U61(X1,X2)
     U61(X1,active(X2)) -> U61(X1,X2)
     U62(mark(X1),X2) -> U62(X1,X2)
     U62(X1,mark(X2)) -> U62(X1,X2)
     U62(active(X1),X2) -> U62(X1,X2)
     U62(X1,active(X2)) -> U62(X1,X2)
     U63(mark(X)) -> U63(X)
     U63(active(X)) -> U63(X)
     U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
     U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
     U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
     U71(active(X1),X2,X3) -> U71(X1,X2,X3)
     U71(X1,active(X2),X3) -> U71(X1,X2,X3)
     U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
     U72(mark(X1),X2) -> U72(X1,X2)
     U72(X1,mark(X2)) -> U72(X1,X2)
     U72(active(X1),X2) -> U72(X1,X2)
     U72(X1,active(X2)) -> U72(X1,X2)
     U73(mark(X1),X2) -> U73(X1,X2)
     U73(X1,mark(X2)) -> U73(X1,X2)
     U73(active(X1),X2) -> U73(X1,X2)
     U73(X1,active(X2)) -> U73(X1,X2)
     isPal(mark(X)) -> isPal(X)
     isPal(active(X)) -> isPal(X)
     U74(mark(X)) -> U74(X)
     U74(active(X)) -> U74(X)
     U81(mark(X1),X2) -> U81(X1,X2)
     U81(X1,mark(X2)) -> U81(X1,X2)
     U81(active(X1),X2) -> U81(X1,X2)
     U81(X1,active(X2)) -> U81(X1,X2)
     U82(mark(X1),X2) -> U82(X1,X2)
     U82(X1,mark(X2)) -> U82(X1,X2)
     U82(active(X1),X2) -> U82(X1,X2)
     U82(X1,active(X2)) -> U82(X1,X2)
     U83(mark(X)) -> U83(X)
     U83(active(X)) -> U83(X)
     isNePal(mark(X)) -> isNePal(X)
     isNePal(active(X)) -> isNePal(X)
     U91(mark(X1),X2) -> U91(X1,X2)
     U91(X1,mark(X2)) -> U91(X1,X2)
     U91(active(X1),X2) -> U91(X1,X2)
     U91(X1,active(X2)) -> U91(X1,X2)
     U92(mark(X)) -> U92(X)
     U92(active(X)) -> U92(X)
    SCC Processor:
     #sccs: 44
     #rules: 288
     #arcs: 16304/182329
     DPs:
      mark#(U92(X)) -> mark#(X)
      mark#(U92(X)) -> active#(U92(mark(X)))
      active#(isPalListKind(__(V1,V2))) -> mark#(U91(isPalListKind(V1),V2))
      mark#(U91(X1,X2)) -> active#(U91(mark(X1),X2))
      active#(isPal(V)) -> mark#(U81(isPalListKind(V),V))
      mark#(U91(X1,X2)) -> mark#(X1)
      mark#(isNePal(X)) -> active#(isNePal(X))
      active#(isNePal(__(I,__(P,I)))) -> mark#(U71(isQid(I),I,P))
      mark#(U83(X)) -> active#(U83(mark(X)))
      active#(isNePal(V)) -> mark#(U61(isPalListKind(V),V))
      mark#(U83(X)) -> mark#(X)
      mark#(U82(X1,X2)) -> active#(U82(mark(X1),X2))
      active#(isNeList(__(V1,V2))) -> mark#(U51(isPalListKind(V1),V1,V2))
      mark#(U82(X1,X2)) -> mark#(X1)
      mark#(U81(X1,X2)) -> active#(U81(mark(X1),X2))
      active#(isNeList(__(V1,V2))) -> mark#(U41(isPalListKind(V1),V1,V2))
      mark#(U81(X1,X2)) -> mark#(X1)
      mark#(U74(X)) -> active#(U74(mark(X)))
      active#(isNeList(V)) -> mark#(U31(isPalListKind(V),V))
      mark#(U74(X)) -> mark#(X)
      mark#(isPal(X)) -> active#(isPal(X))
      active#(isList(__(V1,V2))) -> mark#(U21(isPalListKind(V1),V1,V2))
      mark#(U73(X1,X2)) -> active#(U73(mark(X1),X2))
      active#(isList(V)) -> mark#(U11(isPalListKind(V),V))
      mark#(U73(X1,X2)) -> mark#(X1)
      mark#(U72(X1,X2)) -> active#(U72(mark(X1),X2))
      active#(U91(tt(),V2)) -> mark#(U92(isPalListKind(V2)))
      mark#(U72(X1,X2)) -> mark#(X1)
      mark#(U71(X1,X2,X3)) -> active#(U71(mark(X1),X2,X3))
      active#(U82(tt(),V)) -> mark#(U83(isNePal(V)))
      mark#(U71(X1,X2,X3)) -> mark#(X1)
      mark#(U63(X)) -> active#(U63(mark(X)))
      active#(U81(tt(),V)) -> mark#(U82(isPalListKind(V),V))
      mark#(U63(X)) -> mark#(X)
      mark#(U62(X1,X2)) -> active#(U62(mark(X1),X2))
      active#(U73(tt(),P)) -> mark#(U74(isPalListKind(P)))
      mark#(U62(X1,X2)) -> mark#(X1)
      mark#(U61(X1,X2)) -> active#(U61(mark(X1),X2))
      active#(U72(tt(),P)) -> mark#(U73(isPal(P),P))
      mark#(U61(X1,X2)) -> mark#(X1)
      mark#(U56(X)) -> active#(U56(mark(X)))
      active#(U71(tt(),I,P)) -> mark#(U72(isPalListKind(I),P))
      mark#(U56(X)) -> mark#(X)
      mark#(U55(X1,X2)) -> active#(U55(mark(X1),X2))
      active#(U62(tt(),V)) -> mark#(U63(isQid(V)))
      mark#(U55(X1,X2)) -> mark#(X1)
      mark#(U54(X1,X2,X3)) -> active#(U54(mark(X1),X2,X3))
      active#(U61(tt(),V)) -> mark#(U62(isPalListKind(V),V))
      mark#(U54(X1,X2,X3)) -> mark#(X1)
      mark#(U53(X1,X2,X3)) -> active#(U53(mark(X1),X2,X3))
      active#(U55(tt(),V2)) -> mark#(U56(isList(V2)))
      mark#(U53(X1,X2,X3)) -> mark#(X1)
      mark#(U52(X1,X2,X3)) -> active#(U52(mark(X1),X2,X3))
      active#(U54(tt(),V1,V2)) -> mark#(U55(isNeList(V1),V2))
      mark#(U52(X1,X2,X3)) -> mark#(X1)
      mark#(U51(X1,X2,X3)) -> active#(U51(mark(X1),X2,X3))
      active#(U53(tt(),V1,V2)) -> mark#(U54(isPalListKind(V2),V1,V2))
      mark#(U51(X1,X2,X3)) -> mark#(X1)
      mark#(U46(X)) -> active#(U46(mark(X)))
      active#(U52(tt(),V1,V2)) -> mark#(U53(isPalListKind(V2),V1,V2))
      mark#(U46(X)) -> mark#(X)
      mark#(U45(X1,X2)) -> active#(U45(mark(X1),X2))
      active#(U51(tt(),V1,V2)) -> mark#(U52(isPalListKind(V1),V1,V2))
      mark#(U45(X1,X2)) -> mark#(X1)
      mark#(U44(X1,X2,X3)) -> active#(U44(mark(X1),X2,X3))
      active#(U45(tt(),V2)) -> mark#(U46(isNeList(V2)))
      mark#(U44(X1,X2,X3)) -> mark#(X1)
      mark#(U43(X1,X2,X3)) -> active#(U43(mark(X1),X2,X3))
      active#(U44(tt(),V1,V2)) -> mark#(U45(isList(V1),V2))
      mark#(U43(X1,X2,X3)) -> mark#(X1)
      mark#(U42(X1,X2,X3)) -> active#(U42(mark(X1),X2,X3))
      active#(U43(tt(),V1,V2)) -> mark#(U44(isPalListKind(V2),V1,V2))
      mark#(U42(X1,X2,X3)) -> mark#(X1)
      mark#(U41(X1,X2,X3)) -> active#(U41(mark(X1),X2,X3))
      active#(U42(tt(),V1,V2)) -> mark#(U43(isPalListKind(V2),V1,V2))
      mark#(U41(X1,X2,X3)) -> mark#(X1)
      mark#(isQid(X)) -> active#(isQid(X))
      active#(U41(tt(),V1,V2)) -> mark#(U42(isPalListKind(V1),V1,V2))
      mark#(U33(X)) -> active#(U33(mark(X)))
      active#(U32(tt(),V)) -> mark#(U33(isQid(V)))
      mark#(U33(X)) -> mark#(X)
      mark#(U32(X1,X2)) -> active#(U32(mark(X1),X2))
      active#(U31(tt(),V)) -> mark#(U32(isPalListKind(V),V))
      mark#(U32(X1,X2)) -> mark#(X1)
      mark#(U31(X1,X2)) -> active#(U31(mark(X1),X2))
      active#(U25(tt(),V2)) -> mark#(U26(isList(V2)))
      mark#(U31(X1,X2)) -> mark#(X1)
      mark#(U26(X)) -> active#(U26(mark(X)))
      active#(U24(tt(),V1,V2)) -> mark#(U25(isList(V1),V2))
      mark#(U26(X)) -> mark#(X)
      mark#(isList(X)) -> active#(isList(X))
      active#(U23(tt(),V1,V2)) -> mark#(U24(isPalListKind(V2),V1,V2))
      mark#(U25(X1,X2)) -> active#(U25(mark(X1),X2))
      active#(U22(tt(),V1,V2)) -> mark#(U23(isPalListKind(V2),V1,V2))
      mark#(U25(X1,X2)) -> mark#(X1)
      mark#(U24(X1,X2,X3)) -> active#(U24(mark(X1),X2,X3))
      active#(U21(tt(),V1,V2)) -> mark#(U22(isPalListKind(V1),V1,V2))
      mark#(U24(X1,X2,X3)) -> mark#(X1)
      mark#(U23(X1,X2,X3)) -> active#(U23(mark(X1),X2,X3))
      active#(U12(tt(),V)) -> mark#(U13(isNeList(V)))
      mark#(U23(X1,X2,X3)) -> mark#(X1)
      mark#(U22(X1,X2,X3)) -> active#(U22(mark(X1),X2,X3))
      active#(U11(tt(),V)) -> mark#(U12(isPalListKind(V),V))
      mark#(U22(X1,X2,X3)) -> mark#(X1)
      mark#(U21(X1,X2,X3)) -> active#(U21(mark(X1),X2,X3))
      active#(__(nil(),X)) -> mark#(X)
      mark#(U21(X1,X2,X3)) -> mark#(X1)
      mark#(isNeList(X)) -> active#(isNeList(X))
      active#(__(X,nil())) -> mark#(X)
      mark#(U13(X)) -> active#(U13(mark(X)))
      active#(__(__(X,Y),Z)) -> mark#(__(X,__(Y,Z)))
      mark#(U13(X)) -> mark#(X)
      mark#(isPalListKind(X)) -> active#(isPalListKind(X))
      mark#(U12(X1,X2)) -> active#(U12(mark(X1),X2))
      mark#(U12(X1,X2)) -> mark#(X1)
      mark#(U11(X1,X2)) -> active#(U11(mark(X1),X2))
      mark#(U11(X1,X2)) -> mark#(X1)
      mark#(__(X1,X2)) -> active#(__(mark(X1),mark(X2)))
      mark#(__(X1,X2)) -> mark#(X1)
      mark#(__(X1,X2)) -> mark#(X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      __#(X1,active(X2)) -> __#(X1,X2)
      __#(active(X1),X2) -> __#(X1,X2)
      __#(X1,mark(X2)) -> __#(X1,X2)
      __#(mark(X1),X2) -> __#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      isPalListKind#(mark(X)) -> isPalListKind#(X)
      isPalListKind#(active(X)) -> isPalListKind#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U12#(mark(X1),X2) -> U12#(X1,X2)
      U12#(X1,active(X2)) -> U12#(X1,X2)
      U12#(active(X1),X2) -> U12#(X1,X2)
      U12#(X1,mark(X2)) -> U12#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      isNeList#(mark(X)) -> isNeList#(X)
      isNeList#(active(X)) -> isNeList#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U13#(mark(X)) -> U13#(X)
      U13#(active(X)) -> U13#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U22#(mark(X1),X2,X3) -> U22#(X1,X2,X3)
      U22#(X1,X2,active(X3)) -> U22#(X1,X2,X3)
      U22#(X1,active(X2),X3) -> U22#(X1,X2,X3)
      U22#(active(X1),X2,X3) -> U22#(X1,X2,X3)
      U22#(X1,X2,mark(X3)) -> U22#(X1,X2,X3)
      U22#(X1,mark(X2),X3) -> U22#(X1,X2,X3)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U23#(mark(X1),X2,X3) -> U23#(X1,X2,X3)
      U23#(X1,X2,active(X3)) -> U23#(X1,X2,X3)
      U23#(X1,active(X2),X3) -> U23#(X1,X2,X3)
      U23#(active(X1),X2,X3) -> U23#(X1,X2,X3)
      U23#(X1,X2,mark(X3)) -> U23#(X1,X2,X3)
      U23#(X1,mark(X2),X3) -> U23#(X1,X2,X3)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U24#(mark(X1),X2,X3) -> U24#(X1,X2,X3)
      U24#(X1,X2,active(X3)) -> U24#(X1,X2,X3)
      U24#(X1,active(X2),X3) -> U24#(X1,X2,X3)
      U24#(active(X1),X2,X3) -> U24#(X1,X2,X3)
      U24#(X1,X2,mark(X3)) -> U24#(X1,X2,X3)
      U24#(X1,mark(X2),X3) -> U24#(X1,X2,X3)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      isList#(mark(X)) -> isList#(X)
      isList#(active(X)) -> isList#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U25#(mark(X1),X2) -> U25#(X1,X2)
      U25#(X1,active(X2)) -> U25#(X1,X2)
      U25#(active(X1),X2) -> U25#(X1,X2)
      U25#(X1,mark(X2)) -> U25#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U26#(mark(X)) -> U26#(X)
      U26#(active(X)) -> U26#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U32#(mark(X1),X2) -> U32#(X1,X2)
      U32#(X1,active(X2)) -> U32#(X1,X2)
      U32#(active(X1),X2) -> U32#(X1,X2)
      U32#(X1,mark(X2)) -> U32#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      isQid#(mark(X)) -> isQid#(X)
      isQid#(active(X)) -> isQid#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U33#(mark(X)) -> U33#(X)
      U33#(active(X)) -> U33#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U42#(mark(X1),X2,X3) -> U42#(X1,X2,X3)
      U42#(X1,X2,active(X3)) -> U42#(X1,X2,X3)
      U42#(X1,active(X2),X3) -> U42#(X1,X2,X3)
      U42#(active(X1),X2,X3) -> U42#(X1,X2,X3)
      U42#(X1,X2,mark(X3)) -> U42#(X1,X2,X3)
      U42#(X1,mark(X2),X3) -> U42#(X1,X2,X3)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U43#(mark(X1),X2,X3) -> U43#(X1,X2,X3)
      U43#(X1,X2,active(X3)) -> U43#(X1,X2,X3)
      U43#(X1,active(X2),X3) -> U43#(X1,X2,X3)
      U43#(active(X1),X2,X3) -> U43#(X1,X2,X3)
      U43#(X1,X2,mark(X3)) -> U43#(X1,X2,X3)
      U43#(X1,mark(X2),X3) -> U43#(X1,X2,X3)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U44#(mark(X1),X2,X3) -> U44#(X1,X2,X3)
      U44#(X1,X2,active(X3)) -> U44#(X1,X2,X3)
      U44#(X1,active(X2),X3) -> U44#(X1,X2,X3)
      U44#(active(X1),X2,X3) -> U44#(X1,X2,X3)
      U44#(X1,X2,mark(X3)) -> U44#(X1,X2,X3)
      U44#(X1,mark(X2),X3) -> U44#(X1,X2,X3)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U45#(mark(X1),X2) -> U45#(X1,X2)
      U45#(X1,active(X2)) -> U45#(X1,X2)
      U45#(active(X1),X2) -> U45#(X1,X2)
      U45#(X1,mark(X2)) -> U45#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U46#(mark(X)) -> U46#(X)
      U46#(active(X)) -> U46#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U52#(mark(X1),X2,X3) -> U52#(X1,X2,X3)
      U52#(X1,X2,active(X3)) -> U52#(X1,X2,X3)
      U52#(X1,active(X2),X3) -> U52#(X1,X2,X3)
      U52#(active(X1),X2,X3) -> U52#(X1,X2,X3)
      U52#(X1,X2,mark(X3)) -> U52#(X1,X2,X3)
      U52#(X1,mark(X2),X3) -> U52#(X1,X2,X3)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U53#(mark(X1),X2,X3) -> U53#(X1,X2,X3)
      U53#(X1,X2,active(X3)) -> U53#(X1,X2,X3)
      U53#(X1,active(X2),X3) -> U53#(X1,X2,X3)
      U53#(active(X1),X2,X3) -> U53#(X1,X2,X3)
      U53#(X1,X2,mark(X3)) -> U53#(X1,X2,X3)
      U53#(X1,mark(X2),X3) -> U53#(X1,X2,X3)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U54#(mark(X1),X2,X3) -> U54#(X1,X2,X3)
      U54#(X1,X2,active(X3)) -> U54#(X1,X2,X3)
      U54#(X1,active(X2),X3) -> U54#(X1,X2,X3)
      U54#(active(X1),X2,X3) -> U54#(X1,X2,X3)
      U54#(X1,X2,mark(X3)) -> U54#(X1,X2,X3)
      U54#(X1,mark(X2),X3) -> U54#(X1,X2,X3)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U55#(mark(X1),X2) -> U55#(X1,X2)
      U55#(X1,active(X2)) -> U55#(X1,X2)
      U55#(active(X1),X2) -> U55#(X1,X2)
      U55#(X1,mark(X2)) -> U55#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U56#(mark(X)) -> U56#(X)
      U56#(active(X)) -> U56#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U62#(mark(X1),X2) -> U62#(X1,X2)
      U62#(X1,active(X2)) -> U62#(X1,X2)
      U62#(active(X1),X2) -> U62#(X1,X2)
      U62#(X1,mark(X2)) -> U62#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U63#(mark(X)) -> U63#(X)
      U63#(active(X)) -> U63#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U72#(mark(X1),X2) -> U72#(X1,X2)
      U72#(X1,active(X2)) -> U72#(X1,X2)
      U72#(active(X1),X2) -> U72#(X1,X2)
      U72#(X1,mark(X2)) -> U72#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      isPal#(mark(X)) -> isPal#(X)
      isPal#(active(X)) -> isPal#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U73#(mark(X1),X2) -> U73#(X1,X2)
      U73#(X1,active(X2)) -> U73#(X1,X2)
      U73#(active(X1),X2) -> U73#(X1,X2)
      U73#(X1,mark(X2)) -> U73#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U74#(mark(X)) -> U74#(X)
      U74#(active(X)) -> U74#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U82#(mark(X1),X2) -> U82#(X1,X2)
      U82#(X1,active(X2)) -> U82#(X1,X2)
      U82#(active(X1),X2) -> U82#(X1,X2)
      U82#(X1,mark(X2)) -> U82#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      isNePal#(mark(X)) -> isNePal#(X)
      isNePal#(active(X)) -> isNePal#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U83#(mark(X)) -> U83#(X)
      U83#(active(X)) -> U83#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U92#(mark(X)) -> U92#(X)
      U92#(active(X)) -> U92#(X)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U11#(mark(X1),X2) -> U11#(X1,X2)
      U11#(X1,active(X2)) -> U11#(X1,X2)
      U11#(active(X1),X2) -> U11#(X1,X2)
      U11#(X1,mark(X2)) -> U11#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U21#(mark(X1),X2,X3) -> U21#(X1,X2,X3)
      U21#(X1,X2,active(X3)) -> U21#(X1,X2,X3)
      U21#(X1,active(X2),X3) -> U21#(X1,X2,X3)
      U21#(active(X1),X2,X3) -> U21#(X1,X2,X3)
      U21#(X1,X2,mark(X3)) -> U21#(X1,X2,X3)
      U21#(X1,mark(X2),X3) -> U21#(X1,X2,X3)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U31#(mark(X1),X2) -> U31#(X1,X2)
      U31#(X1,active(X2)) -> U31#(X1,X2)
      U31#(active(X1),X2) -> U31#(X1,X2)
      U31#(X1,mark(X2)) -> U31#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U41#(mark(X1),X2,X3) -> U41#(X1,X2,X3)
      U41#(X1,X2,active(X3)) -> U41#(X1,X2,X3)
      U41#(X1,active(X2),X3) -> U41#(X1,X2,X3)
      U41#(active(X1),X2,X3) -> U41#(X1,X2,X3)
      U41#(X1,X2,mark(X3)) -> U41#(X1,X2,X3)
      U41#(X1,mark(X2),X3) -> U41#(X1,X2,X3)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U51#(mark(X1),X2,X3) -> U51#(X1,X2,X3)
      U51#(X1,X2,active(X3)) -> U51#(X1,X2,X3)
      U51#(X1,active(X2),X3) -> U51#(X1,X2,X3)
      U51#(active(X1),X2,X3) -> U51#(X1,X2,X3)
      U51#(X1,X2,mark(X3)) -> U51#(X1,X2,X3)
      U51#(X1,mark(X2),X3) -> U51#(X1,X2,X3)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U61#(mark(X1),X2) -> U61#(X1,X2)
      U61#(X1,active(X2)) -> U61#(X1,X2)
      U61#(active(X1),X2) -> U61#(X1,X2)
      U61#(X1,mark(X2)) -> U61#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U71#(mark(X1),X2,X3) -> U71#(X1,X2,X3)
      U71#(X1,X2,active(X3)) -> U71#(X1,X2,X3)
      U71#(X1,active(X2),X3) -> U71#(X1,X2,X3)
      U71#(active(X1),X2,X3) -> U71#(X1,X2,X3)
      U71#(X1,X2,mark(X3)) -> U71#(X1,X2,X3)
      U71#(X1,mark(X2),X3) -> U71#(X1,X2,X3)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U81#(mark(X1),X2) -> U81#(X1,X2)
      U81#(X1,active(X2)) -> U81#(X1,X2)
      U81#(active(X1),X2) -> U81#(X1,X2)
      U81#(X1,mark(X2)) -> U81#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open
     
     DPs:
      U91#(mark(X1),X2) -> U91#(X1,X2)
      U91#(X1,active(X2)) -> U91#(X1,X2)
      U91#(active(X1),X2) -> U91#(X1,X2)
      U91#(X1,mark(X2)) -> U91#(X1,X2)
     TRS:
      active(__(__(X,Y),Z)) -> mark(__(X,__(Y,Z)))
      active(__(X,nil())) -> mark(X)
      active(__(nil(),X)) -> mark(X)
      active(U11(tt(),V)) -> mark(U12(isPalListKind(V),V))
      active(U12(tt(),V)) -> mark(U13(isNeList(V)))
      active(U13(tt())) -> mark(tt())
      active(U21(tt(),V1,V2)) -> mark(U22(isPalListKind(V1),V1,V2))
      active(U22(tt(),V1,V2)) -> mark(U23(isPalListKind(V2),V1,V2))
      active(U23(tt(),V1,V2)) -> mark(U24(isPalListKind(V2),V1,V2))
      active(U24(tt(),V1,V2)) -> mark(U25(isList(V1),V2))
      active(U25(tt(),V2)) -> mark(U26(isList(V2)))
      active(U26(tt())) -> mark(tt())
      active(U31(tt(),V)) -> mark(U32(isPalListKind(V),V))
      active(U32(tt(),V)) -> mark(U33(isQid(V)))
      active(U33(tt())) -> mark(tt())
      active(U41(tt(),V1,V2)) -> mark(U42(isPalListKind(V1),V1,V2))
      active(U42(tt(),V1,V2)) -> mark(U43(isPalListKind(V2),V1,V2))
      active(U43(tt(),V1,V2)) -> mark(U44(isPalListKind(V2),V1,V2))
      active(U44(tt(),V1,V2)) -> mark(U45(isList(V1),V2))
      active(U45(tt(),V2)) -> mark(U46(isNeList(V2)))
      active(U46(tt())) -> mark(tt())
      active(U51(tt(),V1,V2)) -> mark(U52(isPalListKind(V1),V1,V2))
      active(U52(tt(),V1,V2)) -> mark(U53(isPalListKind(V2),V1,V2))
      active(U53(tt(),V1,V2)) -> mark(U54(isPalListKind(V2),V1,V2))
      active(U54(tt(),V1,V2)) -> mark(U55(isNeList(V1),V2))
      active(U55(tt(),V2)) -> mark(U56(isList(V2)))
      active(U56(tt())) -> mark(tt())
      active(U61(tt(),V)) -> mark(U62(isPalListKind(V),V))
      active(U62(tt(),V)) -> mark(U63(isQid(V)))
      active(U63(tt())) -> mark(tt())
      active(U71(tt(),I,P)) -> mark(U72(isPalListKind(I),P))
      active(U72(tt(),P)) -> mark(U73(isPal(P),P))
      active(U73(tt(),P)) -> mark(U74(isPalListKind(P)))
      active(U74(tt())) -> mark(tt())
      active(U81(tt(),V)) -> mark(U82(isPalListKind(V),V))
      active(U82(tt(),V)) -> mark(U83(isNePal(V)))
      active(U83(tt())) -> mark(tt())
      active(U91(tt(),V2)) -> mark(U92(isPalListKind(V2)))
      active(U92(tt())) -> mark(tt())
      active(isList(V)) -> mark(U11(isPalListKind(V),V))
      active(isList(nil())) -> mark(tt())
      active(isList(__(V1,V2))) -> mark(U21(isPalListKind(V1),V1,V2))
      active(isNeList(V)) -> mark(U31(isPalListKind(V),V))
      active(isNeList(__(V1,V2))) -> mark(U41(isPalListKind(V1),V1,V2))
      active(isNeList(__(V1,V2))) -> mark(U51(isPalListKind(V1),V1,V2))
      active(isNePal(V)) -> mark(U61(isPalListKind(V),V))
      active(isNePal(__(I,__(P,I)))) -> mark(U71(isQid(I),I,P))
      active(isPal(V)) -> mark(U81(isPalListKind(V),V))
      active(isPal(nil())) -> mark(tt())
      active(isPalListKind(a())) -> mark(tt())
      active(isPalListKind(e())) -> mark(tt())
      active(isPalListKind(i())) -> mark(tt())
      active(isPalListKind(nil())) -> mark(tt())
      active(isPalListKind(o())) -> mark(tt())
      active(isPalListKind(u())) -> mark(tt())
      active(isPalListKind(__(V1,V2))) -> mark(U91(isPalListKind(V1),V2))
      active(isQid(a())) -> mark(tt())
      active(isQid(e())) -> mark(tt())
      active(isQid(i())) -> mark(tt())
      active(isQid(o())) -> mark(tt())
      active(isQid(u())) -> mark(tt())
      mark(__(X1,X2)) -> active(__(mark(X1),mark(X2)))
      mark(nil()) -> active(nil())
      mark(U11(X1,X2)) -> active(U11(mark(X1),X2))
      mark(tt()) -> active(tt())
      mark(U12(X1,X2)) -> active(U12(mark(X1),X2))
      mark(isPalListKind(X)) -> active(isPalListKind(X))
      mark(U13(X)) -> active(U13(mark(X)))
      mark(isNeList(X)) -> active(isNeList(X))
      mark(U21(X1,X2,X3)) -> active(U21(mark(X1),X2,X3))
      mark(U22(X1,X2,X3)) -> active(U22(mark(X1),X2,X3))
      mark(U23(X1,X2,X3)) -> active(U23(mark(X1),X2,X3))
      mark(U24(X1,X2,X3)) -> active(U24(mark(X1),X2,X3))
      mark(U25(X1,X2)) -> active(U25(mark(X1),X2))
      mark(isList(X)) -> active(isList(X))
      mark(U26(X)) -> active(U26(mark(X)))
      mark(U31(X1,X2)) -> active(U31(mark(X1),X2))
      mark(U32(X1,X2)) -> active(U32(mark(X1),X2))
      mark(U33(X)) -> active(U33(mark(X)))
      mark(isQid(X)) -> active(isQid(X))
      mark(U41(X1,X2,X3)) -> active(U41(mark(X1),X2,X3))
      mark(U42(X1,X2,X3)) -> active(U42(mark(X1),X2,X3))
      mark(U43(X1,X2,X3)) -> active(U43(mark(X1),X2,X3))
      mark(U44(X1,X2,X3)) -> active(U44(mark(X1),X2,X3))
      mark(U45(X1,X2)) -> active(U45(mark(X1),X2))
      mark(U46(X)) -> active(U46(mark(X)))
      mark(U51(X1,X2,X3)) -> active(U51(mark(X1),X2,X3))
      mark(U52(X1,X2,X3)) -> active(U52(mark(X1),X2,X3))
      mark(U53(X1,X2,X3)) -> active(U53(mark(X1),X2,X3))
      mark(U54(X1,X2,X3)) -> active(U54(mark(X1),X2,X3))
      mark(U55(X1,X2)) -> active(U55(mark(X1),X2))
      mark(U56(X)) -> active(U56(mark(X)))
      mark(U61(X1,X2)) -> active(U61(mark(X1),X2))
      mark(U62(X1,X2)) -> active(U62(mark(X1),X2))
      mark(U63(X)) -> active(U63(mark(X)))
      mark(U71(X1,X2,X3)) -> active(U71(mark(X1),X2,X3))
      mark(U72(X1,X2)) -> active(U72(mark(X1),X2))
      mark(U73(X1,X2)) -> active(U73(mark(X1),X2))
      mark(isPal(X)) -> active(isPal(X))
      mark(U74(X)) -> active(U74(mark(X)))
      mark(U81(X1,X2)) -> active(U81(mark(X1),X2))
      mark(U82(X1,X2)) -> active(U82(mark(X1),X2))
      mark(U83(X)) -> active(U83(mark(X)))
      mark(isNePal(X)) -> active(isNePal(X))
      mark(U91(X1,X2)) -> active(U91(mark(X1),X2))
      mark(U92(X)) -> active(U92(mark(X)))
      mark(a()) -> active(a())
      mark(e()) -> active(e())
      mark(i()) -> active(i())
      mark(o()) -> active(o())
      mark(u()) -> active(u())
      __(mark(X1),X2) -> __(X1,X2)
      __(X1,mark(X2)) -> __(X1,X2)
      __(active(X1),X2) -> __(X1,X2)
      __(X1,active(X2)) -> __(X1,X2)
      U11(mark(X1),X2) -> U11(X1,X2)
      U11(X1,mark(X2)) -> U11(X1,X2)
      U11(active(X1),X2) -> U11(X1,X2)
      U11(X1,active(X2)) -> U11(X1,X2)
      U12(mark(X1),X2) -> U12(X1,X2)
      U12(X1,mark(X2)) -> U12(X1,X2)
      U12(active(X1),X2) -> U12(X1,X2)
      U12(X1,active(X2)) -> U12(X1,X2)
      isPalListKind(mark(X)) -> isPalListKind(X)
      isPalListKind(active(X)) -> isPalListKind(X)
      U13(mark(X)) -> U13(X)
      U13(active(X)) -> U13(X)
      isNeList(mark(X)) -> isNeList(X)
      isNeList(active(X)) -> isNeList(X)
      U21(mark(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,mark(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,mark(X3)) -> U21(X1,X2,X3)
      U21(active(X1),X2,X3) -> U21(X1,X2,X3)
      U21(X1,active(X2),X3) -> U21(X1,X2,X3)
      U21(X1,X2,active(X3)) -> U21(X1,X2,X3)
      U22(mark(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,mark(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,mark(X3)) -> U22(X1,X2,X3)
      U22(active(X1),X2,X3) -> U22(X1,X2,X3)
      U22(X1,active(X2),X3) -> U22(X1,X2,X3)
      U22(X1,X2,active(X3)) -> U22(X1,X2,X3)
      U23(mark(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,mark(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,mark(X3)) -> U23(X1,X2,X3)
      U23(active(X1),X2,X3) -> U23(X1,X2,X3)
      U23(X1,active(X2),X3) -> U23(X1,X2,X3)
      U23(X1,X2,active(X3)) -> U23(X1,X2,X3)
      U24(mark(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,mark(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,mark(X3)) -> U24(X1,X2,X3)
      U24(active(X1),X2,X3) -> U24(X1,X2,X3)
      U24(X1,active(X2),X3) -> U24(X1,X2,X3)
      U24(X1,X2,active(X3)) -> U24(X1,X2,X3)
      U25(mark(X1),X2) -> U25(X1,X2)
      U25(X1,mark(X2)) -> U25(X1,X2)
      U25(active(X1),X2) -> U25(X1,X2)
      U25(X1,active(X2)) -> U25(X1,X2)
      isList(mark(X)) -> isList(X)
      isList(active(X)) -> isList(X)
      U26(mark(X)) -> U26(X)
      U26(active(X)) -> U26(X)
      U31(mark(X1),X2) -> U31(X1,X2)
      U31(X1,mark(X2)) -> U31(X1,X2)
      U31(active(X1),X2) -> U31(X1,X2)
      U31(X1,active(X2)) -> U31(X1,X2)
      U32(mark(X1),X2) -> U32(X1,X2)
      U32(X1,mark(X2)) -> U32(X1,X2)
      U32(active(X1),X2) -> U32(X1,X2)
      U32(X1,active(X2)) -> U32(X1,X2)
      U33(mark(X)) -> U33(X)
      U33(active(X)) -> U33(X)
      isQid(mark(X)) -> isQid(X)
      isQid(active(X)) -> isQid(X)
      U41(mark(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,mark(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,mark(X3)) -> U41(X1,X2,X3)
      U41(active(X1),X2,X3) -> U41(X1,X2,X3)
      U41(X1,active(X2),X3) -> U41(X1,X2,X3)
      U41(X1,X2,active(X3)) -> U41(X1,X2,X3)
      U42(mark(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,mark(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,mark(X3)) -> U42(X1,X2,X3)
      U42(active(X1),X2,X3) -> U42(X1,X2,X3)
      U42(X1,active(X2),X3) -> U42(X1,X2,X3)
      U42(X1,X2,active(X3)) -> U42(X1,X2,X3)
      U43(mark(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,mark(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,mark(X3)) -> U43(X1,X2,X3)
      U43(active(X1),X2,X3) -> U43(X1,X2,X3)
      U43(X1,active(X2),X3) -> U43(X1,X2,X3)
      U43(X1,X2,active(X3)) -> U43(X1,X2,X3)
      U44(mark(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,mark(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,mark(X3)) -> U44(X1,X2,X3)
      U44(active(X1),X2,X3) -> U44(X1,X2,X3)
      U44(X1,active(X2),X3) -> U44(X1,X2,X3)
      U44(X1,X2,active(X3)) -> U44(X1,X2,X3)
      U45(mark(X1),X2) -> U45(X1,X2)
      U45(X1,mark(X2)) -> U45(X1,X2)
      U45(active(X1),X2) -> U45(X1,X2)
      U45(X1,active(X2)) -> U45(X1,X2)
      U46(mark(X)) -> U46(X)
      U46(active(X)) -> U46(X)
      U51(mark(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,mark(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,mark(X3)) -> U51(X1,X2,X3)
      U51(active(X1),X2,X3) -> U51(X1,X2,X3)
      U51(X1,active(X2),X3) -> U51(X1,X2,X3)
      U51(X1,X2,active(X3)) -> U51(X1,X2,X3)
      U52(mark(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,mark(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,mark(X3)) -> U52(X1,X2,X3)
      U52(active(X1),X2,X3) -> U52(X1,X2,X3)
      U52(X1,active(X2),X3) -> U52(X1,X2,X3)
      U52(X1,X2,active(X3)) -> U52(X1,X2,X3)
      U53(mark(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,mark(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,mark(X3)) -> U53(X1,X2,X3)
      U53(active(X1),X2,X3) -> U53(X1,X2,X3)
      U53(X1,active(X2),X3) -> U53(X1,X2,X3)
      U53(X1,X2,active(X3)) -> U53(X1,X2,X3)
      U54(mark(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,mark(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,mark(X3)) -> U54(X1,X2,X3)
      U54(active(X1),X2,X3) -> U54(X1,X2,X3)
      U54(X1,active(X2),X3) -> U54(X1,X2,X3)
      U54(X1,X2,active(X3)) -> U54(X1,X2,X3)
      U55(mark(X1),X2) -> U55(X1,X2)
      U55(X1,mark(X2)) -> U55(X1,X2)
      U55(active(X1),X2) -> U55(X1,X2)
      U55(X1,active(X2)) -> U55(X1,X2)
      U56(mark(X)) -> U56(X)
      U56(active(X)) -> U56(X)
      U61(mark(X1),X2) -> U61(X1,X2)
      U61(X1,mark(X2)) -> U61(X1,X2)
      U61(active(X1),X2) -> U61(X1,X2)
      U61(X1,active(X2)) -> U61(X1,X2)
      U62(mark(X1),X2) -> U62(X1,X2)
      U62(X1,mark(X2)) -> U62(X1,X2)
      U62(active(X1),X2) -> U62(X1,X2)
      U62(X1,active(X2)) -> U62(X1,X2)
      U63(mark(X)) -> U63(X)
      U63(active(X)) -> U63(X)
      U71(mark(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,mark(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,mark(X3)) -> U71(X1,X2,X3)
      U71(active(X1),X2,X3) -> U71(X1,X2,X3)
      U71(X1,active(X2),X3) -> U71(X1,X2,X3)
      U71(X1,X2,active(X3)) -> U71(X1,X2,X3)
      U72(mark(X1),X2) -> U72(X1,X2)
      U72(X1,mark(X2)) -> U72(X1,X2)
      U72(active(X1),X2) -> U72(X1,X2)
      U72(X1,active(X2)) -> U72(X1,X2)
      U73(mark(X1),X2) -> U73(X1,X2)
      U73(X1,mark(X2)) -> U73(X1,X2)
      U73(active(X1),X2) -> U73(X1,X2)
      U73(X1,active(X2)) -> U73(X1,X2)
      isPal(mark(X)) -> isPal(X)
      isPal(active(X)) -> isPal(X)
      U74(mark(X)) -> U74(X)
      U74(active(X)) -> U74(X)
      U81(mark(X1),X2) -> U81(X1,X2)
      U81(X1,mark(X2)) -> U81(X1,X2)
      U81(active(X1),X2) -> U81(X1,X2)
      U81(X1,active(X2)) -> U81(X1,X2)
      U82(mark(X1),X2) -> U82(X1,X2)
      U82(X1,mark(X2)) -> U82(X1,X2)
      U82(active(X1),X2) -> U82(X1,X2)
      U82(X1,active(X2)) -> U82(X1,X2)
      U83(mark(X)) -> U83(X)
      U83(active(X)) -> U83(X)
      isNePal(mark(X)) -> isNePal(X)
      isNePal(active(X)) -> isNePal(X)
      U91(mark(X1),X2) -> U91(X1,X2)
      U91(X1,mark(X2)) -> U91(X1,X2)
      U91(active(X1),X2) -> U91(X1,X2)
      U91(X1,active(X2)) -> U91(X1,X2)
      U92(mark(X)) -> U92(X)
      U92(active(X)) -> U92(X)
     Open