Complex sentence: The Prix d'Ispahan is a Group 1 flat horse race in France for four-year-old and above thoroughbreds run over a distance of 1,850 metres (approximately 1 mile and 1¼ furlongs) at Longchamp Racecourse in May.
Split into simpler sentences: The Prix d'Ispahan is a Group 1 flat horse race in France for four-year-old and above thoroughbreds. It is run over a distance of 1,850 metres (approximately 1 mile and 1¼ furlongs) at Longchamp Racecourse in May.