(CONDITIONTYPE ORIENTED)
(VAR x)
(RULES
  f(x) -> A | s(x) == t
  f(x) -> B | s(x) == t
  s(a) -> t
  s(b) -> t
  a -> c
  b -> c
  g(x, x) -> h(x, x)
)
(COMMENT
  \cite{G14}, example 43
  PhD Thesis, not yet published
)