Anchor: Two football players are tackling a third while a referee watches.
Entailed: The football players are playing football.
Contradiction: The three men are playing catch with the dog.
Contradiction: the bus is all black
Contradiction: A man is working on a boat.
Contradiction: The 11th-century donjon formed the town's northern defenses.
Contradiction: Roman Fretard purchased building materials for his house, using the company's credit card.