Text: Before Paris became the national capital, it was the home of the medieval dukes of the region that is still known as the Ile-de-France ' which, by gradually asserting itself over other duchies such as Burgundy and Normandy, imposed its name on the whole country.
Entailment: Paris was the home of the medieval dukes of the region.
Contradiction: Paris became the capital of France as a result of a drawn-out war.