 Two parallel set of charts are concurrently produced and published, one on behalf of Belgium's mainly Dutch-speaking Flanders region, and the other catering to the nation's mainly French-speaking region of Wallonia.The music charts produced by Ultratop organization are separated along regional-language boundaries, an unusual division that is justified by the cultural differences in Belgium.So it is that the mainly Dutch-speaking Flanders region has one set of charts of record activity there, while the mainly French-speaking Wallonia region has another set to measure popularity in those provinces.