Complex sentence: The autonomous districts of Abidjan and Yamoussoukro are not divided into departments (or regions), though they do contain sub-prefectures, and the portion of Comoé National Park that is within Zanzan District is also not assigned to any department.
Split into simpler sentences: The autonomous districts of Abidjan and Yamoussoukro are not divided into departments (or regions), though they do contain sub-prefectures. Also, the portion of Comoé National Park that is within Zanzan District is not assigned to any department.