(STRATEGY
    INNERMOST)

(VAR
    X)
(DATATYPES
    A = µX.< g(X), n__f(X), n__a >)
(SIGNATURES
    f :: [A] -> A
    a :: [] -> A
    activate :: [A] -> A)
(RULES
    f(f(a())) -> f(g(n__f(n__a())))
    f(X) -> n__f(X)
    a() -> n__a()
    activate(n__f(X)) ->
      f(activate(X))
    activate(n__a()) -> a()
    activate(X) -> X)