Complex sentence: The World Trophy is a Group 3 flat horse race in the United Kingdom for three-year-old and above thoroughbreds run over a distance of 5 furlongs and 34 yards (1,037 metres) at Newbury Racecourse in September.
Split into simpler sentences: The World Trophy is a Group 3 flat horse race in the United Kingdom for three-year-old and above thoroughbreds. It is run over a distance of 5 furlongs and 34 yards (1,037 metres) at Newbury Racecourse in September.