premise: Corsica contains a city.
hypothesis: Corsica . The island formed a single department until it was split in 1975 into two departments : Haute-Corse ( Upper Corsica ) and Corse-du-Sud ( Southern Corsica ) , with its regional capital in Ajaccio , the prefecture city of Corse-du-Sud . Bastia , the prefecture city of Haute-Corse , is the second-largest settlement in Corsica .