(S (S (S (BASENP (NN One) (NN person)) (VP (VBD had) (VP (VBN been) (VP (VBN identified))))) (COMMA ,) (SBAR (IN although) (S (BASENP (PRPD their) (NN name)) (VP (VP (VBZ has) (RB not)) (VP (VBN been) (VP (VBN released))))))) (PERIOD .))