(S (S (BASENP (NNP Buffalo)) (VP (VP (VP (VBD was) (NP (BASENP (DT the) (NN host)) (PP (IN of) (BASENP (DT the) (NNP Pan-American) (NNP Exposition))))) (PP (IN from) (BASENP (NNP May) (NN 1)))) (PP (IN until) (NP (BASENP (NNP November) (NN 2)) (COMMA ,) (NN 1901))))) (PERIOD .))