(S (S (QT (DQL ``) (QTC (S (BASENP (DT This)) (VP (VP (VBZ lends) (BASENP (JJ further) (NN support))) (PP (TO to) (NP (BASENP (DT the) (NN idea)) (SBAR (IN that) (S (BASENP (NN homosexuality)) (VP (VBZ has) (BASENP (JJ biological) (NNS underpinnings))))))))) (COMMA ,)) (DQR '')) (S (NP (BASENP (NNP Charles) (NNP Roselli)) (PRN (COMMA ,) (NP (BASENP (DT a) (NN professor)) (PP (IN of) (BASENP (NNS physiology) (CC and) (NN pharmacology)))) (COMMA ,))) (VP (VBD said) (PP (IN in) (NP (BASENP (DT an) (NN interview)) (PP (IN with) (BASENP (DT the) (NNP Corvallis) (NNP Gazette-Times)))))))) (PERIOD .))