(S (S (S (NP (BASENP (DT An) (JJ official) (NN cause)) (PP (IN of) (BASENP (NN death)))) (VP (VP (VBZ has) (RB not)) (VP (VBN been) (VP (VBN released))))) (CC but) (S (BASENP (PRP it)) (VP (VBZ has) (VP (VBN been) (VP (VBN reported) (SBAR (IN that) (S (BASENP (NNP Gilson)) (VP (VBD did) (VP (VB receive) (BASENP (NN head) (NNS injuries))))))))))) (PERIOD .))