(S (S (NP (BASENP (NNPS Peruvians)) (VP (VBG living) (PP (IN near) (NP (BASENP (DT the) (NN site)) (PP (IN of) (NP (BASENP (DT a) (NN release)) (PP (IN of) (BASENP (NN mercury))))))))) (VP (VBP are) (VP (VP (VBG preparing) (S (VP (TO to) (VP (VB sue) (BASENP (DT a) (JJ U.S.) (NN mining) (NN company)))))) (COMMA ,) (S (VP (VP (VBG announcing) (BASENP (JJ last) (NNP Saturday))) (SBAR (IN that) (S (BASENP (PRP they)) (VP (MD will) (VP (VP (VB bring) (BASENP (PRPD their) (NN case))) (PP (IN before) (BASENP (DT a) (NNP Denver) (NN judge)))))))))))) (PERIOD .))