(S (S (S (S (VP (VBG Reacting) (PP (TO to) (BASENP (DT the) (NNP U.S.) (NNS claims))))) (COMMA ,) (S (NP (BASENP (NNP Iran) (POS 's)) (BASENP (NNP President) (NNP Mahmoud) (NNP Ahmadinejad))) (VP (VP (VBD said) (PP (IN in) (BASENP (DT a) (NN television) (NN interview)))) (SBAR (SBAR (IN that) (S (BASENP (DT the) (NNS allegations)) (VP (VBD were) (NP (QTL (DQL ``) (BASENP (NNS excuses))) (S (VP (TO to) (VP (VB prolong) (NP (NP (QTR (BASENP (DT the) (NN stay)) (DQR '')) (PP (IN of) (BASENP (DT the) (NNP U.S.) (NN military)))) (PP (IN in) (BASENP (NNP Iraq))))))))))) (CONJP (COMMA ,) (CC and)) (SBAR (IN that) (S (BASENP (DT the) (NNP U.S.)) (VP (VBD was) (VP (VP (VP (VBG pointing) (BASENP (NNS fingers))) (PP (IN at) (BASENP (NNS others)))) (PP (IN in) (NP (BASENP (DT an) (NN effort)) (S (VP (TO to) (QT (DQL ``) (VP (VB hide) (BASENP (PRPD its) (NNS defeats) (CC and) (NNS failures))) (DQR '')))))))))))))) (COLON ;) (S (ADVP (RB however)) (S (PP (IN in) (NP (NP (BASENP (DT an) (NN interview)) (PP (IN with) (BASENP (NNP Diane) (NNP Sawyer)))) (PP (IN on) (BASENP (NNP February) (NN 12th))))) (COMMA ,) (S (BASENP (NNP Ahmadinejad)) (VP (VBD refused) (S (VP (TO to) (VP (VB address) (NP (NNS accusations) (SBAR (IN that) (S (BASENP (PRPD his) (NN country)) (VP (VBD was) (VP (VP (VBG supplying) (BASENP (NNS weapons))) (PP (TO to) (NP (BASENP (NNS insurgents)) (PP (IN in) (BASENP (NNP Iraq)))))))))))))))))) (PERIOD .))