flow through the hollywood pipeline without a hitch 
(ROOT (S (VP (VB flow) (PP (IN through) (NP (DT the) (NNP hollywood) (NN pipeline))) (PP (IN without) (NP (DT a) (NN hitch))))))
(ROOT (S (VP (VB ) (PP (IN ) (NP (DT ) (NNP ) (NN ))) (PP (IN ) (NP (DT ) (NN ))))))