(S (S (ADVP (RBR Earlier)) (S (BASENP (DT the) (NNS companies)) (VP (VBD agreed) (S (VP (TO to) (VP (VP (VB contribute) (PP (IN with) (NP (BASENP (QP (NN 100) (NN billion)) (NN yen)) (BASENP (DT each))))) (PP (IN in) (BASENP (DT the) (NNP SED) (NN plant))))))))) (PERIOD .))