Complex sentence: The St. James's Palace Stakes is a Group 1 flat horse race in the United Kingdom for three-year-old thoroughbred colts run over a distance of 1 mile at Ascot Racecourse during the Royal Ascot meeting in June.
Split into simpler sentences: The St. James's Palace Stakes is a Group 1 flat horse race in the United Kingdom for three-year-old thoroughbred colts. It is run over a distance of 1 mile at Ascot Racecourse during the Royal Ascot meeting in June.