(S (S (BASENP (NNP CAAT) (NN member) (NNP Brian) (NNP Law)) (COMMA ,) (VP (VBD said) (SBAR (S (NP (BASENP (NN four)) (PP (IN of) (BASENP (DT the) (NN group)))) (VP (VP (VP (VBD split) (PP (IN into) (BASENP (NN two) (NNS groups)))) (CC and) (VP (VBD entered) (BASENP (DT the) (NN base)))) (PP (IN in) (BASENP (DT a) (JJ co-ordinated) (NN movement)))))))) (PERIOD .))