(S (S (PP (VBG According) (PP (TO to) (BASENP (NNP Buffalo) (NNP Police) (NN spokesman) (NNP Mike) (NNP DeGeorge)))) (COMMA ,) (S (NP (BASENP (NNS workers)) (PP (IN in) (NP (BASENP (DT the) (NNS offices)) (PP (IN on) (NP (BASENP (DT the) (NN 500) (NNS block)) (PP (IN of) (BASENP (NNP Delaware) (NNP Avenue)))))))) (VP (VBD witnessed) (S (BASENP (DT a) (JJ suspicious) (NN person)) (VP (VP (VP (VBG placing) (BASENP (DT a) (JJ suspicious) (NN package))) (PP (IN inside) (NP (DT a) (NP (NP (BASENP (NNP United) (NNP Parcel) (NNP Service)) (PRN (LRB -LRB-) (BASENP (NNP UPS)) (RRB -RRB-))) (BASENP (NN drop) (NN box)))))) (PP (IN at) (NP (NP (BASENP (RB around) (NN 4:30) (NN p.m.)) (BASENP (NN EDT))) (PRN (LRB -LRB-) (BASENP (NN UTC-4)) (RRB -RRB-))))))))) (PERIOD .))