Complex sentence: There are multiple regions in Africa who debate over the geographical origins of Jollof rice however, one of the most longstanding and popular debates between two regions, has typically been between Nigerians and Ghanaians.
Split into simpler sentences: There are multiple regions in Africa who debate over the geographical origins of Jollof rice. However, one of the most vigorous Jollof rice rivalries has been between Nigerians and Ghanaians.