(S (S (PP (VBG According) (PP (TO to) (BASENP (NNS reports)))) (COMMA ,) (S (BASENP (NNS police)) (VP (VP (VBD witnessed) (BASENP (DT the) (JJ entire) (NN incident))) (S (VP (VBG saying) (SBAR (IN that) (S (NP (BASENP (DT a) (NN fleet)) (PP (IN of) (BASENP (NN paparazzi)))) (VP (VBD were) (VP (VP (VP (VBG following) (BASENP (NNP Spears))) (PP (IN at) (NP (BASENP (DT a) (JJ high) (NN rate)) (PP (IN of) (BASENP (NN speed)))))) (PP (IN around) (NP (NP (BASENP (NN 11:20) (NN p.m.)) (BASENP (NN PST))) (PRN (LRB -LRB-) (BASENP (NN UTC-8)) (RRB -RRB-))))))))))))) (PERIOD .))