MAYBE
MAYBE
TRS:
 {
  2nd(cons1(X, cons(Y))) -> Y,
            2nd(cons(X)) -> 2nd(cons1(X, X1)),
                 from(X) -> cons(X)
 }
 DUP: We consider a duplicating system.
  Trs:
   {
    2nd(cons1(X, cons(Y))) -> Y,
              2nd(cons(X)) -> 2nd(cons1(X, X1)),
                   from(X) -> cons(X)
   }
  Fail