Text: The beach here is an amazing 12 km (7 miles) long, but Chennai is also the place for banking and mailing packages, and for picking up letters from home at the poste restante counter of the General Post Office.
Entailment: Chennai has a seven-mile-long beach as well as a post office.
Contradiction: People who live in Chennai have to travel to the next town ten miles away to visit a post office.