Complex sentence: The Singapore Airlines International Cup is a Group 1 flat horse race in Singapore for three-year-old and above thoroughbreds run over a distance of 2,000 metres (approximately 1 mile 2 furlongs) at Kranji Racecourse in May.
Split into simpler sentences: The Singapore Airlines International Cup is a Group 1 flat horse race in Singapore open to three-year-old and above thoroughbreds. It is run over a distance of 2,000 metres (approximately 1¼ miles) at Kranji Racecourse and takes place annually in May.