Complex sentence: The Premio Regina Elena is a Group 3 flat horse race in Italy for three-year-old thoroughbred fillies run over a distance of 1,600 metres (approximately 1 mile) at the Capannelle Racecourse, Rome in May.
Split into simpler sentences: The Premio Regina Elena is a Group 3 flat horse race in Italy for three-year-old thoroughbred fillies. It is run over a distance of 1,600 metres (approximately 1 mile) at the Capannelle Racecourse, Rome in May.