Complex sentence: Many descendants of the Beni Ḥassān tribes today still adhere to the supremacist ideology of their ancestors, which has caused the oppression, discrimination and even enslavement of other groups in Mauritania.
Split into simpler sentences: Many descendants of the Beni Ḥassān tribes today still adhere to the supremacist ideology of their ancestors. This ideology has led to oppression, discrimination and even enslavement of other groups in Mauritania.