(S (S (NP (BASENP (DT The) (JJ third)) (PRN (COMMA ,) (BASENP (DT an) (JJ unidentified) (NN truck-driver)) (COMMA ,))) (VP (VBD was) (VP (VP (VBN treated) (CC and) (VBN released)) (PP (IN at) (BASENP (NNP Methodist) (NNP Dallas) (NNP Medical) (NNP Center)))))) (PERIOD .))