(S (S (NP (NP (NP (NP (BASENP (NNP Japan)) (COMMA ,) (BASENP (NNP South) (NNP Korea))) (COMMA ,) (BASENP (NNP New) (NNP Zealand))) (COMMA ,) (BASENP (NNP India))) (CC and) (BASENP (NNP Australia))) (VP (VBP are) (VP (VBG considering) (BASENP (NN joining))))) (PERIOD .))