(S (S (NP (NP (BASENP (DT The) (JJ top) (JJ U.S.) (NN diplomat)) (PP (IN in) (BASENP (NNP Iraq)))) (PRN (COMMA ,) (BASENP (NNP Ambassador) (NNP Ryan) (NNP Crocker)) (COMMA ,))) (VP (ADVP (RB also)) (VP (VP (VBD joined) (BASENP (NNP General) (NNP Petraeus))) (PP (IN in) (NP (BASENP (DT the) (NN presentation)) (PP (TO to) (BASENP (NNP Congress)))))))) (PERIOD .))