Original sentence: Chengbei District 城北区]].Chengdong District 城东区]].Chengxi District Chengxi 城西区]].Chengzhong District 城中区]]
Edited sentence: Chengbei District 城北区.Chengdong District 城东区.Chengxi District Chengxi 城西区.Chengzhong District 城中区