(S (S (BASENP (NNP Boegart)) (VP (VBD reasoned) (SBAR (IN that) (S (SBAR (IN if) (S (NP (BASENP (DT the) (NN link)) (PP (IN between) (NP (BASENP (NN homosexuality)) (CC and) (BASENP (JJ elder) (NNS brothers))))) (VP (VBD was) (PP (JJ due) (PP (TO to) (NP (BASENP (DT the) (NN nurturing) (NNS effects)) (PP (IN of) (BASENP (DT the) (NN family) (NN environment))))))))) (S (BASENP (PRP it)) (VP (MD would) (VP (VB show) (ADVP (RB regardless) (PP (IN of) (BASENP (DT any) (JJ biological) (NN relationship))))))))))) (PERIOD .))