polanski has found the perfect material with which to address his own world war ii experience in his signature style . 
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(ROOT (S (NP (NNP )) (VP (VBZ ) (VP (VBN ) (NP (NP (DT ) (JJ ) (NN )) (SBAR (WHPP (IN ) (WHNP (WDT ))) (S (VP (TO ) (VP (VB ) (NP (PRP$ ) (JJ ) (NML (NML (NN ) (NN )) (NN )) (NN )) (PP (IN ) (NP (PRP$ ) (NN ) (NN )))))))))) (. )))