Simplify the following text for a Grade 7 native English-speaking person.
Original: The circuit has four grandstand areas ( Main Grandstand , West Grandstand , North Grandstand and South Grandstand ) and part of its pit lane exit runs underneath the track .
Simplified: The circuit has four grandstand areas ( Main Grandstand , West Grandstand , North Grandstand and South Grandstand ) . Part of its pit lane exit runs underneath the track .