(S (S (S (VP (VBG Pledging) (SBAR (IN that) (S (NP (BASENP (DT a) (NN bill)) (S (VP (TO to) (VP (VB legalise) (BASENP (JJ same-sex) (NN marriage)))))) (VP (MD would) (VP (VB be) (VP (VBN introduced) (PP (IN within) (NP (BASENP (NN 100) (NNS days)) (PP (IN of) (BASENP (NN government)))))))))))) (COMMA ,) (S (BASENP (NNP Rudd)) (VP (VBD promised) (S (VP (TO to) (VP (VP (VB allow) (BASENP (DT a) (QT (DQL ``) (BASENP (JJ full) (NN conscience) (NN vote)) (DQR '')))) (SBAR (IN if) (S (BASENP (PRP he)) (VP (VBD were) (S (VP (TO to) (VP (VB be) (VP (VBN re-elected)))))))))))))) (PERIOD .))