Anchor: A boy is dribbling a basketball during a basketball game.
Entailed: A boy is playing basketball.
Contradiction: The boy is playing baseball.
Contradiction: Men dressed in ski outfits sleep on a bench next to a bus station.
Contradiction: Meanwhile, we should all try to sleep. 
Contradiction: The group of people are assembling gold stars.
Contradiction: An animal moves quickly while carrying a ball.