despite several attempts at lengthy dialogue scenes 
(ROOT (PP (IN despite) (NP (NP (JJ several) (NNS attempts)) (PP (IN at) (NP (JJ lengthy) (NN dialogue) (NNS scenes))))))
(ROOT (PP (IN ) (NP (NP (JJ ) (NNS )) (PP (IN ) (NP (JJ ) (NN ) (NNS ))))))