MAYBE MAYBE TRS: { a(X) -> e(), b(X) -> e(), c(X) -> e(), c(b(a(X))) -> a(a(b(b(c(c(X)))))) } DUP: We consider a non-duplicating system. Trs: { a(X) -> e(), b(X) -> e(), c(X) -> e(), c(b(a(X))) -> a(a(b(b(c(c(X)))))) } Fail