(S (S (BASENP (DT The) (NN incident)) (VP (VBD occurred) (PP (IN in) (NP (BASENP (DT the) (NNP Upper) (NNP Big) (NNP Branch) (NN mine)) (PP (IN in) (NP (BASENP (NNP Montcoal)) (COMMA ,) (BASENP (NNP West) (NNP Virginia)))))))) (PERIOD .))