Complex sentence: The Queen Alexandra Stakes is a flat horse race in the United Kingdom for four-year-old and above thoroughbreds run over a distance of 2 mile 5 furlongs and 159 yards (4,370 metres) at Ascot Racecourse during the Royal Ascot meeting in June.
Split into simpler sentences: The Queen Alexandra Stakes is a flat horse race in the United Kingdom for four-year-old and above thoroughbreds. It is run over a distance of 2 mile 5 furlongs and 159 yards (4,370 metres) at Ascot Racecourse during the Royal Ascot meeting in June.