Text: On 12 April 1782, in the sea channel near Guadeloupe's little off-shore islands of Les Saintes, a British fleet gained historic revenge against French Admiral de Grasse, of Yorktown fame, in a battle that is still talked about today.
Entailment: The sea channel was near Guadeloupe's off-shore islands.
Contradiction: The sea channel was near France's off-shore islands.