Input (grade 13): The ChÅ "bu region covers a large and geographically diverse area of HonshÅ" which leads to it generally being divided into three distinct subregions: TÅ kai, KÅ shin 'etsu, and Hokuriku.
Output (grade 6): The ChÅ "bu region isa large area of HonshÅ". It can be divided into three different regions: TÅ kai, KÅ shin 'etsu, and Hokuriku.