Complex sentence: The King George VI Chase is a Grade 1 National Hunt horse race in the United Kingdom for four-year-old and above horses run over a distance of 3 miles (4,828 metres) at Kempton Park Racecourse on Boxing Day.
Split into simpler sentences: The King George VI Chase is a Grade 1 National Hunt horse race in the United Kingdom for four-year-old and above horses. It is run over a distance of 3 miles (4,828 metres) at Kempton Park Racecourse on Boxing Day.