Complex sentence: Mansi (obsolete: Voguls) are an endangered ethnic group, living in Khantia-Mansia, an autonomous region within the Russian Federation, together with Khants where the Khant and Mansi languages are given co-official status with Russian.
Split into simpler sentences: Mansi (obsolete: Voguls) are an endangered ethnic group living in Khantia-Mansia, an autonomous region within the Russian Federation, together with Khants. In Khantia-Mansia, the Khant and Mansi languages are given co-official status with Russian.