Complex sentence: The Prix du Lys is a Group 3 flat horse race in France for three-year-old thoroughbred colts and geldings run over a distance of 2,400 metres (approximately 1½ miles) at Longchamp Racecourse in June.
Split into simpler sentences: The Prix du Lys is a Group 3 flat horse race in France for three-year-old thoroughbred colts and geldings. It is run over a distance of 2,400 metres (approximately 1½ miles) at Longchamp Racecourse in June.