makes it not only a detailed historical document , but an engaging and moving portrait of a subculture 
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(ROOT (S (VP (VBZ ) (S (NP (PRP )) (NP (CONJP (RB ) (RB )) (NP (DT ) (JJ ) (JJ ) (NN )) (, ) (CC ) (NP (NP (DT ) (ADJP (VBG ) (CC ) (VBG )) (NN )) (PP (IN ) (NP (DT ) (NN )))))))))