TRS:
 {              c() -> f(n__g(n__c())),
         f(n__g(X)) -> g(activate(X)),
               g(X) -> n__g(X),
                c() -> n__c(),
  activate(n__g(X)) -> g(X),
   activate(n__c()) -> c(),
        activate(X) -> X}
 Fail