Rule fired: Class op foldr (BUILTIN)
Rule fired: Class op >> (BUILTIN)
Rule fired: Class op return (BUILTIN)
Rule fired: unpack (GHC.Base)
Rule fired: fold/build (GHC.Base)
Rule fired: <# (BUILTIN)
Rule fired: tagToEnum# (BUILTIN)
Rule fired: unpack-list (GHC.Base)