(S (S (PP (IN By) (NP (BASENP (DT the) (NN time)) (SBAR (S (BASENP (DT the) (NN two) (NNS men)) (VP (VP (VBD met) (ADVP (RB again))) (ADVP (BASENP (NN eight) (NNS years)) (RBR later))))))) (COMMA ,) (S (BASENP (NNP Guevara)) (VP (VBD was) (NP (BASENP (DT a) (JJ revolutionary) (NN hero) (CC and) (NN chief)) (PP (IN of) (NP (BASENP (NNP Cuba) (POS 's)) (BASENP (JJ central) (NN bank)))))))) (PERIOD .))