of event movies than a spy thriller like the bourne identity 
(ROOT (PP (PP (IN of) (NP (NN event) (NNS movies))) (PP (IN than) (NP (NP (DT a) (NN spy) (NN thriller)) (PP (IN like) (NP (DT the) (NN bourne) (NN identity)))))))
(ROOT (PP (PP (IN ) (NP (NN ) (NNS ))) (PP (IN ) (NP (NP (DT ) (NN ) (NN )) (PP (IN ) (NP (DT ) (NN ) (NN )))))))