(STRATEGY
    INNERMOST)

(VAR
    x)
(DATATYPES
    A = µX.< r(X) >)
(SIGNATURES
    w :: [A] -> A
    b :: [A] -> A)
(RULES
    w(r(x)) -> r(w(x))
    b(r(x)) -> r(b(x))
    b(w(x)) -> w(b(x)))