Anchor: It's not that they don't study at all, because they do.
Entailed: They do study.
Contradiction: They never cracked open the book for the class.
Contradiction: The main point of the exit conference is to confirm that the key facts used in GAO's analyses are incorrect.
Contradiction: Forty percent of the harcovers ordered by chains are returned. 
Contradiction:  No one gave thought to the impact of ugly photos on sexual urges.
Contradiction: to what specific basketball are you referring?