(S (BASENP (PRP He)) (VP (VBD announced) (SBAR (IN that) (S (BASENP (DT the) (NNS police)) (QT (DQL ``) (QTC (VP (VBP are) (VP (VP (VBG appealing) (PP (TO to) (NP (BASENP (NN anyone)) (SBAR (WHNP (WP who)) (S (VP (VP (VBD witnessed) (BASENP (DT the) (NN incident))) (CC and) (VP (VP (VBD saw) (NP (BASENP (DT either)) (PP (IN of) (BASENP (DT these) (NNS vehicles))))) (ADVP (RB beforehand))))))))) (S (VP (TO to) (VP (VB get) (PP (IN in) (BASENP (NN touch)))))))) (PERIOD .)) (DQR ''))))))