Input TRS:
    1: f(f(x)) -> g(f(x))
Number of strict rules: 1
Direct Order(PosReal,>,Poly) ... removes: 1
     f(x1)	weight: (/ 1 4) + 2 * x1
     g(x1)	weight: (/ 1 4) + x1
Number of strict rules: 0
YES