(S (S (ADVP (RB However)) (COMMA ,) (S (NP (BASENP (DT the) (NN death) (NN toll)) (CC and) (NP (BASENP (DT the) (NN identity)) (PP (IN of) (NP (BASENP (DT those)) (VP (VBN killed)))))) (VP (VP (VBD was) (RB not)) (VP (ADVP (RB officially)) (VBN confirmed))))) (PERIOD .))