(S (S (PP (IN For) (BASENP (NN example))) (COMMA ,) (S (NP (BASENP (NNP Ban) (NNP Ki-moon)) (COMMA ,) (NP (BASENP (NN secretary) (NN general)) (PP (IN of) (BASENP (DT the) (NNP United) (NNPS Nations))))) (VP (BASENP (NN yesterday)) (VP (VP (VBD called) (PP (IN for) (BASENP (DT the) (NN election)))) (S (VP (TO to) (VP (VB be) (VP (VBN postponed))))))))) (PERIOD .))