is imposter makes a better short story than it does a film 
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(ROOT (S (S (VP (VBZ ) (NP (NN )))) (VP (VBZ ) (NP (NP (DT ) (JJR ) (JJ ) (NN )) (SBAR (IN ) (S (NP (PRP )) (VP (VBZ ) (NP (DT ) (NN )))))))))