(S (S (S (BASENP (NN 14) (NN coal) (NNS miners)) (VP (VBD died))) (SBAR (WHADVP (WRB when)) (S (BASENP (DT a) (NN dam)) (VP (VBD burst) (COMMA ,) (S (VP (VP (VBG ravaging) (BASENP (DT the) (NN land))) (CC and) (VP (VBG flooding) (NP (BASENP (PRPD their) (NN pit)) (PP (IN at) (BASENP (NNP Shenjiawan) (NNP Colliery))))))))))) (PERIOD .))