(S (S (BASENP (DT A) (NN gunman)) (VP (VBZ has) (VP (VP (VP (VBN opened) (BASENP (NN fire))) (PP (IN on) (BASENP (NNS tourists)))) (PP (IN in) (NP (BASENP (NNP Amman)) (COMMA ,) (NP (BASENP (DT the) (NN capital)) (PP (IN of) (BASENP (NNP Jordan))))))))) (PERIOD .))