(S (BASENP (VBG Threatening) (NNS letters)) (VP (VBD were) (VP (VP (VBN sent) (PP (TO to) (BASENP (NN 20) (NNP U.S.) (NNS newspapers)))) (COMMA ,) (S (VP (VBG stating) (COLON :) (QT (DQL ``) (QTC (BASENP (NNP Goldman) (NNP Sachs)) (PERIOD .)) (DQR '')))))))