(S (S (BASENP (JJ Australian) (NNP Prime) (NNP Minister) (NNP John) (NNP Howard)) (VP (VBZ has) (VP (VBN announced) (SBAR (IN that) (S (NP (BASENP (NNS leaders)) (PP (IN of) (BASENP (NNP APEC) (NNS nations)))) (VP (VBP have) (VP (VBN agreed) (PP (IN on) (NP (QT (DQL ``) (BASENP (JJ aspirational) (NNS goals)) (DQR '')) (PP (IN on) (BASENP (NN climate) (NN change)))))))))))) (PERIOD .))