Anchor: Four shirtless men are working on a building.
Entailed: Some men are working together in construction.
Contradiction: The men lost their shirts while gambling together.
Contradiction: To retrieve the parts of Slate that you rated the lowest
Contradiction: A dog jumps for a ball.
Contradiction: diGenova and Toensing have never met Geraldo. 
Contradiction: A man is on a bull.