(S (S (NP (NP (NP (NP (BASENP (NN Traffic) (NNS officials)) (COMMA ,) (BASENP (NN security) (NN personnel))) (COMMA ,) (BASENP (JJ civil) (NN defense) (NNS soldiers))) (CC and) (BASENP (NNS ambulances))) (BASENP (DT all))) (VP (VBD responded) (PP (TO to) (BASENP (DT the) (NN crash))))) (PERIOD .))