(S (S (NP (EX There)) (VP (VBD were) (NP (NP (BASENP (NN 15) (NNS attacks)) (PP (IN per) (BASENP (NN day)))) (PP (IN on) (NP (BASENP (NNS police)) (CC and) (BASENP (NN emergency) (NNS services))))))) (PERIOD .))