Original sentence: 24 hours of Le Mans (24 heures du Mans) is the most famous sports car endurance race held at Circuit de la Sarthe near Le Mans, France, near river La Sarthe
Edited sentence: 24 hours of Le Mans (24 heures du Mans) is a famous sports car endurance race held at Circuit de la Sarthe near Le Mans, France, near river La Sarthe