(S (S (BASENP (NNP Alan) (NNP Mercer)) (VP (VBZ is) (VP (VP (VP (VBG running) (PP (IN for) (BASENP (DT the) (NNP Ontario) (NNP Libertarian) (NNP Party)))) (PP (IN in) (BASENP (DT the) (NNP Ontario) (JJ provincial) (NN election)))) (COMMA ,) (PP (IN in) (BASENP (DT the) (NNP Scarborough) (NNP --) (NNP Rouge) (NNP River) (NN riding)))))) (PERIOD .))