Complex sentence: The Prix de Guiche is a Group 3 flat horse race in France for three-year-old thoroughbred colts run over a distance of 1,800 metres (approximately 1 mile 1 furlong) at Chantilly Racecourse in May.
Split into simpler sentences: The Prix de Guiche is a Group 3 flat horse race in France for three-year-old thoroughbred colts. It is run over a distance of 1,800 metres (approximately 1 mile 1 furlong) at Chantilly Racecourse in May.