premise: Corsica is at the base of a headland.
hypothesis: Corsica ( [ ˈkɔrsɪkə ] Corse [ kɔʁs ] Corsican and Italian : Corsica [ ˈkɔrsika ] ) is an island in the Mediterranean Sea and one of the 13 regions of France . It is located west of the Italian Peninsula , southeast of the French mainland , and north of the Italian island of Sardinia .