(VAR X X1 X2 Y Z )
(RULES 
        active(sel(s(X), cons(Y, Z))) -> mark(sel(X, Z))
        active(sel(0, cons(X, Z))) -> mark(X)
        active(first(0, Z)) -> mark(nil)
        active(first(s(X), cons(Y, Z))) -> mark(cons(Y, first(X, Z)))
        active(from(X)) -> mark(cons(X, from(s(X))))
        active(sel1(s(X), cons(Y, Z))) -> mark(sel1(X, Z))
        active(sel1(0, cons(X, Z))) -> mark(quote(X))
        active(first1(0, Z)) -> mark(nil1)
        active(first1(s(X), cons(Y, Z))) -> mark(cons1(quote(Y), first1(X, Z)))
        active(quote(0)) -> mark(01)
        active(quote1(cons(X, Z))) -> mark(cons1(quote(X), quote1(Z)))
        active(quote1(nil)) -> mark(nil1)
        active(quote(s(X))) -> mark(s1(quote(X)))
        active(quote(sel(X, Z))) -> mark(sel1(X, Z))
        active(quote1(first(X, Z))) -> mark(first1(X, Z))
        active(unquote(01)) -> mark(0)
        active(unquote(s1(X))) -> mark(s(unquote(X)))
        active(unquote1(nil1)) -> mark(nil)
        active(unquote1(cons1(X, Z))) -> mark(fcons(unquote(X), unquote1(Z)))
        active(fcons(X, Z)) -> mark(cons(X, Z))
        mark(sel(X1, X2)) -> active(sel(mark(X1), mark(X2)))
        mark(s(X)) -> active(s(mark(X)))
        mark(cons(X1, X2)) -> active(cons(mark(X1), X2))
        mark(0) -> active(0)
        mark(first(X1, X2)) -> active(first(mark(X1), mark(X2)))
        mark(nil) -> active(nil)
        mark(from(X)) -> active(from(mark(X)))
        mark(sel1(X1, X2)) -> active(sel1(mark(X1), mark(X2)))
        mark(quote(X)) -> active(quote(X))
        mark(first1(X1, X2)) -> active(first1(mark(X1), mark(X2)))
        mark(nil1) -> active(nil1)
        mark(cons1(X1, X2)) -> active(cons1(mark(X1), mark(X2)))
        mark(01) -> active(01)
        mark(quote1(X)) -> active(quote1(X))
        mark(s1(X)) -> active(s1(mark(X)))
        mark(unquote(X)) -> active(unquote(mark(X)))
        mark(unquote1(X)) -> active(unquote1(mark(X)))
        mark(fcons(X1, X2)) -> active(fcons(mark(X1), mark(X2)))
        sel(mark(X1), X2) -> sel(X1, X2)
        sel(X1, mark(X2)) -> sel(X1, X2)
        sel(active(X1), X2) -> sel(X1, X2)
        sel(X1, active(X2)) -> sel(X1, X2)
        s(mark(X)) -> s(X)
        s(active(X)) -> s(X)
        cons(mark(X1), X2) -> cons(X1, X2)
        cons(X1, mark(X2)) -> cons(X1, X2)
        cons(active(X1), X2) -> cons(X1, X2)
        cons(X1, active(X2)) -> cons(X1, X2)
        first(mark(X1), X2) -> first(X1, X2)
        first(X1, mark(X2)) -> first(X1, X2)
        first(active(X1), X2) -> first(X1, X2)
        first(X1, active(X2)) -> first(X1, X2)
        from(mark(X)) -> from(X)
        from(active(X)) -> from(X)
        sel1(mark(X1), X2) -> sel1(X1, X2)
        sel1(X1, mark(X2)) -> sel1(X1, X2)
        sel1(active(X1), X2) -> sel1(X1, X2)
        sel1(X1, active(X2)) -> sel1(X1, X2)
        quote(mark(X)) -> quote(X)
        quote(active(X)) -> quote(X)
        first1(mark(X1), X2) -> first1(X1, X2)
        first1(X1, mark(X2)) -> first1(X1, X2)
        first1(active(X1), X2) -> first1(X1, X2)
        first1(X1, active(X2)) -> first1(X1, X2)
        cons1(mark(X1), X2) -> cons1(X1, X2)
        cons1(X1, mark(X2)) -> cons1(X1, X2)
        cons1(active(X1), X2) -> cons1(X1, X2)
        cons1(X1, active(X2)) -> cons1(X1, X2)
        quote1(mark(X)) -> quote1(X)
        quote1(active(X)) -> quote1(X)
        s1(mark(X)) -> s1(X)
        s1(active(X)) -> s1(X)
        unquote(mark(X)) -> unquote(X)
        unquote(active(X)) -> unquote(X)
        unquote1(mark(X)) -> unquote1(X)
        unquote1(active(X)) -> unquote1(X)
        fcons(mark(X1), X2) -> fcons(X1, X2)
        fcons(X1, mark(X2)) -> fcons(X1, X2)
        fcons(active(X1), X2) -> fcons(X1, X2)
        fcons(X1, active(X2)) -> fcons(X1, X2)
        
)