(S (S (BASENP (NNS Diplomats)) (VP (VBD said) (SBAR (IN that) (S (SBAR (IN if) (S (BASENP (NNP Iran)) (VP (MD would) (VP (VB possess) (BASENP (JJ advanced) (NN missile) (NNS capabilities)))))) (BASENP (PRP it)) (VP (MD would) (VP (VB be) (PP (IN of) (NP (BASENP (NN concern)) (PP (TO to) (NP (BASENP (DT the) (NNS nations)) (SBAR (WHNP (WP who)) (S (VP (VBP believe) (SBAR (S (BASENP (NNP Iran)) (VP (VBZ is) (VP (VBG developing) (NP (BASENP (JJ nuclear) (NNS weapons)) (COMMA ,) (NP (BASENP (NN something)) (SBAR (S (BASENP (NNP Iran)) (VP (VBZ denies))))))))))))))))))))))) (PERIOD .))