(S (S (BASENP (DT The) (JJ Australian) (NNP Prime) (NNP Minster)) (VP (ADVP (RB further)) (VP (VP (VP (VBD defended) (BASENP (PRPD his) (NN statement))) (BASENP (NN today))) (COMMA ,) (S (VP (VBG claiming) (SBAR (S (NP (BASENP (NNP Obama) (POS 's)) (NN plan)) (VP (VBD threatened) (NP (BASENP (NNP Australia) (POS 's)) (BASENP (JJ national) (NN security))))))))))) (PERIOD .))