MAYBE
MAYBE
TRS:
 {f(f(a(), x), y) -> h(h(f(f(x, f(a(), y)), a())))}
 DUP: We consider a non-duplicating system.
  Trs:
   {f(f(a(), x), y) -> h(h(f(f(x, f(a(), y)), a())))}
  Fail