Anchor: A young boy tosses his ball in the air outside.
Entailed: There is nitrogen in the air.
Contradiction: The ball is the heaviest medicine ball on the planet.
Contradiction: Everybody knew that she would be in the house.
Contradiction: It's awful up here, but I don't know what it's like down there.
Contradiction: He will not enjoy this punishment thus it will be effective.  
Contradiction: A man named Jacob.