(S (S (PP (VBG According) (PP (TO to) (BASENP (NNS reports)))) (COMMA ,) (S (BASENP (JJ several) (NNS civilians)) (VP (VBD were) (VP (VP (VBN injured) (CONJP (CC and) (CC or)) (VBN killed)) (PP (IN in) (BASENP (DT the) (NN attack))))))) (PERIOD .))