(S (S (S (BASENP (PRP They)) (VP (VBP are) (ADJP (JJ objectionable) (PP (IN for) (NP (BASENP (NN abortion) (NNS opponents)) (SBAR (WHNP (WP who)) (S (VP (VBP consider) (S (BASENP (PRPD their) (NN use)) (VP (TO to) (VP (VB be) (NP (BASENP (DT a) (NN form)) (PP (IN of) (BASENP (NN abortion))))))))))))))) (COMMA ,) (SBAR (IN though) (S (NP (BASENP (JJ scientific) (NNS studies)) (PRN (LRB -LRB-) (PP (VBG including) (NP (BASENP (DT those)) (PP (IN by) (BASENP (DT the) (NNP FDA))))) (RRB -RRB-))) (VP (VP (VBP classify) (BASENP (PRP them))) (PP (IN as) (BASENP (NNS contraceptives))))))) (PERIOD .))