allows his cast members to make creative contributions to the story and dialogue 
(ROOT (S (VP (VBZ allows) (S (NP (PRP$ his) (NN cast) (NNS members)) (VP (TO to) (VP (VB make) (NP (NP (JJ creative) (NNS contributions)) (PP (IN to) (NP (DT the) (NN story) (CC and) (NN dialogue))))))))))
(ROOT (S (VP (VBZ ) (S (NP (PRP$ ) (NN ) (NNS )) (VP (TO ) (VP (VB ) (NP (NP (JJ ) (NNS )) (PP (IN ) (NP (DT ) (NN ) (CC ) (NN ))))))))))