proves a servicable world war ii drama that ca n't totally hide its contrivances 
(ROOT (S (VP (VBZ proves) (NP (NP (DT a) (JJ servicable) (NML (NML (NN world) (NN war)) (CD ii)) (NN drama)) (SBAR (WHNP (WDT that)) (S (VP (MD ca) (RB n't) (ADVP (RB totally)) (VP (VB hide) (NP (PRP$ its) (NNS contrivances))))))))))
(ROOT (S (VP (VBZ ) (NP (NP (DT ) (JJ ) (NML (NML (NN ) (NN )) (CD )) (NN )) (SBAR (WHNP (WDT )) (S (VP (MD ) (RB ) (ADVP (RB )) (VP (VB ) (NP (PRP$ ) (NNS ))))))))))