(S (S (NP (BASENP (DT The) (JJ first) (NN call)) (PP (TO to) (BASENP (DT the) (NNP Police)))) (VP (VBD spoke) (PP (PP (ADVP (RB not)) (PP (IN of) (BASENP (DT an) (NN explosion)))) (CONJP (COMMA ,) (CC but)) (PP (IN of) (NP (BASENP (DT a) (NN person)) (VP (VBG falling) (PP (IN under) (NP (BASENP (DT the) (NNS wheels)) (PP (IN of) (BASENP (DT the) (NN train))))))))))) (PERIOD .))