MAYBE
MAYBE
TRS:
 {
               f(X) -> n__f(X),
          f(f(a())) -> f(g(n__f(n__a()))),
                a() -> n__a(),
        activate(X) -> X,
  activate(n__f(X)) -> f(activate(X)),
   activate(n__a()) -> a()
 }
 Fail