even through its flaws , revolution # 9 proves to be a compelling 
(ROOT (S (PP (ADVP (RB even)) (IN through) (NP (PRP$ its) (NNS flaws))) (, ,) (NP (NN revolution) (NN #) (CD 9)) (VP (VBZ proves) (S (VP (TO to) (VP (VB be) (NP (DT a) (NN compelling))))))))
(ROOT (S (PP (ADVP (RB )) (IN ) (NP (PRP$ ) (NNS ))) (, ) (NP (NN ) (NN ) (CD )) (VP (VBZ ) (S (VP (TO ) (VP (VB ) (NP (DT ) (NN ))))))))