(S (S (PP (VBG According) (PP (TO to) (BASENP (JJ current) (NNP Nielsen) (CC and) (NNP Galaxy) (NNS polls)))) (COMMA ,) (S (PP (IN on) (BASENP (DT a) (JJ two-party) (JJ preferred) (NN basis))) (COMMA ,) (S (BASENP (NNP Julia) (NNP Gillard)) (VP (VP (VBZ leads) (NP (BASENP (PRPD her) (NN rival)) (PRN (COMMA ,) (BASENP (NN opposition) (NN leader) (NNP Tony) (NNP Abbott)) (COMMA ,)))) (BASENP (NN 52-48) (NN percent)))))) (PERIOD .))