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