Anchor: The man leaps above the other team to spike the ball.
Entailed: He leaped about the other team to hit the ball.
Contradiction: He didn't leap.
Contradiction: Two dogs are staring at a knight riding a horse until battle.
Contradiction: It's still necessary to perform basic grunt work like this.
Contradiction: Workers are planning a vacation.
Contradiction: The man is getting a haircut.