(S (S (BASENP (DT The) (JJS largest) (NNS non-signers)) (VP (VBP are) (NP (NP (NP (NP (BASENP (NNP Indonesia)) (COMMA ,) (BASENP (NNP Russia))) (COMMA ,) (BASENP (NNP Colombia))) (COMMA ,) (BASENP (NNP Tanzania))) (CONJP (COMMA ,) (CC and)) (BASENP (NNP Uzbekistan))))) (PERIOD .))