(S (S (PP (VBG According) (PP (TO to) (BASENP (NN union) (NNS estimations)))) (COMMA ,) (S (PP (IN between) (BASENP (NN 2006) (CC and) (NN 2007))) (S (BASENP (QP (RB nearly) (NN 250)) (NNS miners)) (VP (VBD died) (PP (IN in) (BASENP (NNS accidents))))))) (PERIOD .))