(S (S (PP (PP (NP (BASENP (NN 警察)) (CC や) (BASENP (NN 救急) (NN サービス))) (IN に)) (IN は)) (COMMA 、) (S (PP-SBJ (NP (PP (NP (BASENP (NN １) (NN 日)) (BASENP (NN １５) (NN 件))) (IN の)) (NN 襲撃)) (IN が)) (VP (VBV あっ) (VP (MD た))))) (PERIOD 。))
警察 や 救急 サービス に は 、 1 日 15 件 の 襲撃 が あっ た 。
There were 15 attacks per day on police and emergency services .