a memorable experience that , like many of his works , presents weighty issues 
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(ROOT (NP (NP (DT ) (JJ ) (NN )) (SBAR (WHNP (WDT )) (, ) (S (PP (IN ) (NP (NP (JJ )) (PP (IN ) (NP (PRP$ ) (NNS ))))) (, ) (VP (VBZ ) (NP (JJ ) (NNS )))))))