Original sentence: Filming locations in Kentucky included Boone and Gallatin Counties, and the city of Warsaw; In Ohio, the University of Cincinnati, the city of Cincinnati, and Kings Island  amusement park, then in Deerfield Township, Warren County, Ohio, now in Mason; and Switzerland County, Indiana
Edited sentence: Filming locations in Kentucky included Kenton, Boone and Gallatin Counties, and the city of Warsaw; In Ohio, the University of Cincinnati, the city of Cincinnati, and Kings Island  amusement park, then in Deerfield Township, Warren County, Ohio, now in Mason; and Switzerland County, Indiana