Simplify the following text for a Grade 14 native English-speaking person.
Original: The current name of the province , '' å å '' , is an abbreviation of '' å å è '' ( SÃ ChuÄ nlÃ ) , or `` Four circuits of rivers '' , which is itself abbreviated from '' å å å è '' ( ChuÄ nxiÃ SÃ lÃ ) , or `` Four circuits of rivers and gorges '' , named after the division of the existing circuit into four during the Northern Song Dynasty .
Simplified: The name å å SÃ ChuÄ n , is an abbreviation of å å è SÃ ChuÄ n LÃ ( translated as `` Four circuits ( subdivisions ) of rivers '' ) , which is itself shortened from å å å è ChuÄ n XiÃ SÃ LÃ ( translated as `` Four circuits of rivers and gorges '' ) .