(S (S (SBAR (WHADVP (WRB When)) (S (BASENP (NNP Bongo)) (VP (VBD was) (VP (ADVP (RB first)) (VP (VP (VBN announced) (BASENP (DT the) (NN winner))) (PP (VBG following) (NP (BASENP (NNP August) (POS 's)) (NN vote)))))))) (COMMA ,) (S (BASENP (NN police)) (VP (VP (VBD dispersed) (NP (BASENP (NN opposition) (NNS demonstrators)) (PP (IN in) (BASENP (DT the) (NN capital))))) (PP (IN with) (BASENP (NN tear) (NN gas)))))) (PERIOD .))