MAYBE
MAYBE
TRS:
 {
    mark(g(X)) -> active(g(X)),
    mark(h(X)) -> active(h(mark(X))),
    mark(f(X)) -> active(f(mark(X))),
    g(mark(X)) -> g(X),
  g(active(X)) -> g(X),
    h(mark(X)) -> h(X),
  h(active(X)) -> h(X),
    f(mark(X)) -> f(X),
  f(active(X)) -> f(X),
  active(f(X)) -> mark(g(h(f(X))))
 }
 DUP: We consider a non-duplicating system.
  Trs:
   {
      mark(g(X)) -> active(g(X)),
      mark(h(X)) -> active(h(mark(X))),
      mark(f(X)) -> active(f(mark(X))),
      g(mark(X)) -> g(X),
    g(active(X)) -> g(X),
      h(mark(X)) -> h(X),
    h(active(X)) -> h(X),
      f(mark(X)) -> f(X),
    f(active(X)) -> f(X),
    active(f(X)) -> mark(g(h(f(X))))
   }
  Fail