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