(S (S (BASENP (DT The) (JJ determining) (NN factor)) (VP (MD may) (VP (VB be) (NP (BASENP (DT the) (JJ popular) (JJ former) (NN president) (NNP Jean-Bertrand) (NNP Aristide)) (COMMA ,) (SBAR (WHNP (WP who)) (S (VP (VP (VP (VP (VBD returned) (ADVP (BASENP (NN two) (NNS days)) (RB ago))) (PP (TO to) (BASENP (NNP Haiti)))) (PP (IN from) (BASENP (NNP South) (NNP America)))) (PP (IN after) (NP (BASENP (NN seven) (NNS years)) (PP (IN in) (BASENP (NN exile)))))))))))) (PERIOD .))