undermines the possibility for an exploration of the thornier aspects of the nature/nurture argument in regards to homosexuality 
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(ROOT (VP (VBZ ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NP (DT ) (JJ ) (NNS )) (PP (IN ) (NP (NP (DT ) (NML (NN ) (, ) (JJ )) (NN )) (PP (IN ) (NP (NP (NNS )) (PP (IN ) (NP (NN ))))))))))))))