(S (S (BASENP (NNP Bogaert)) (VP (VBZ writes) (PP (IN in) (NP (BASENP (DT this) (NN month) (POS 's)) (NNP PNAS))))) (COLON :) (QT (DQL ``) (QTC (S (BASENP (DT These) (NNS results)) (VP (VP (VBP support) (NP (BASENP (DT a) (JJ prenatal) (NN origin)) (PP (TO to) (NP (BASENP (JJ sexual) (NN orientation) (NN development)) (PP (IN in) (BASENP (NNS men))))))) (CC and) (VP (VBP indicate) (SBAR (IN that) (S (BASENP (DT the) (JJ fraternal) (JJ birth-order) (NN effect)) (VP (VP (VBZ is) (ADVP (RB probably))) (NP (BASENP (DT the) (NN result)) (PP (IN of) (NP (BASENP (DT a) (JJ maternal) (QT (DQL `) (NN memory) (DQR '))) (PP (IN for) (BASENP (JJ male) (NNS gestations) (CC or) (NNS births)))))))))))) (PERIOD .)) (DQR '')))