YES
O(n^2)
TRS:
 {      g(a()) -> b(),
           a() -> g(c()),
  f(g(X), b()) -> f(a(), X)}
 Natural interpretation:
  Strict:
   {      g(a()) -> b(),
             a() -> g(c()),
    f(g(X), b()) -> f(a(), X)}
  Weak:
   {}
  Interpretation class: deltarestricted
  [f](delta, X1, X0) = + 0*X0 + 0*X1 + 0 + 1*X0*delta + 1*X1*delta + 0*delta
  [b](delta) = + 1 + 1*delta
  [a](delta) = + 1 + 1*delta
  [c](delta) = + 0 + 0*delta
  [g](delta, X0) = + 0*X0 + 1 + 1*X0*delta + 0*delta
  f_tau_1(delta) = delta/(0 + 1 * delta)f_tau_2(delta) = delta/(0 + 1 * delta)
  
  
  
  g_tau_1(delta) = delta/(0 + 1 * delta)
  
  Qed