of great monster/science fiction flicks 
(ROOT (PP (IN of) (NP (JJ great) (NML (NML (NN monster) (, /) (NN science)) (NN fiction)) (NNS flicks))))
(ROOT (PP (IN ) (NP (JJ ) (NML (NML (NN ) (, ) (NN )) (NN )) (NNS ))))