(S (S (ADVP (BASENP (DT A) (JJ short) (NN time)) (RBR later)) (S (NP (BASENP (DT a) (JJ third) (NN protester)) (PRN (COMMA ,) (VP (VBN identified) (PP (IN as) (BASENP (NNP Isabel) (NNP Indigo) (NNP Brooks)))) (COMMA ,))) (VP (VBD was) (VP (ADVP (RB also)) (VBN arrested))))) (PERIOD .))