(S (S (BASENP (DT The) (NNP FBI)) (VP (VBZ has) (VP (VBN questioned) (NP (BASENP (DT a) (NNP Milwaukee) (NN resident)) (VP (VBN said) (S (VP (TO to) (VP (VB be) (ADJP (JJ responsible) (PP (IN for) (NP (BASENP (DT the) (NNS threats)) (COMMA ,) (SBAR (WHNP (WDT which)) (S (VP (VBD were) (VP (VP (VBN posted) (PP (IN on) (BASENP (DT the) (NN web) (NN site)))) (BASENP (JJ last) (NN week))))))))))))))))) (PERIOD .))