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