as relationships shift , director robert j. siegel allows the characters to inhabit their world without cleaving to a narrative arc . 
(ROOT (S (SBAR (IN as) (S (NP (NNS relationships)) (VP (VBP shift)))) (, ,) (NP (NN director) (NNP robert) (NNP j.) (NNP siegel)) (VP (VBZ allows) (S (NP (DT the) (NNS characters)) (VP (TO to) (VP (VB inhabit) (NP (PRP$ their) (NN world)) (PP (IN without) (S (VP (VBG cleaving) (PP (IN to) (NP (DT a) (JJ narrative) (NN arc)))))))))) (. .)))
(ROOT (S (SBAR (IN ) (S (NP (NNS )) (VP (VBP )))) (, ) (NP (NN ) (NNP ) (NNP ) (NNP )) (VP (VBZ ) (S (NP (DT ) (NNS )) (VP (TO ) (VP (VB ) (NP (PRP$ ) (NN )) (PP (IN ) (S (VP (VBG ) (PP (IN ) (NP (DT ) (JJ ) (NN )))))))))) (. )))