Complex sentence: The Prix d'Harcourt is a Group 2 flat horse race in France for four-year-old and above thoroughbreds run over a distance of 2,000 metres (approximately 1 mile 2 furlongs) at Longchamp Racecourse in late March/early April.
Split into simpler sentences: The Prix d'Harcourt is a Group 2 flat horse race in France for four-year-old and above thoroughbreds. It is run over a distance of 2,000 metres (approximately 1 mile 2 furlongs) at Longchamp Racecourse in late March or early April.