Complex sentence: The Prix Imprudence is a Listed flat horse race in France for three-year-old thoroughbred fillies run over a distance of 1,400 metres (approximately 7 furlongs) at Maisons-Laffitte Racecourse in April.
Split into simpler sentences: The Prix Imprudence is a Listed flat horse race in France for three-year-old thoroughbred fillies. It is run over a distance of 1,400 metres (approximately 7 furlongs) at Maisons-Laffitte Racecourse in April.