Anchor: In 1993, a National Research Council study found that more than 10 percent of all federal financial aid was awarded in error.
Entailed: Some federal financial aid is awarded in error.
Contradiction: No federal financial aid is awarded in error.
Contradiction: A man swims with his wife.
Contradiction: A man has a gun in his hand.
Contradiction: Singapore has the lowest income in all of Southeast Asia. 
Contradiction: There is a person thats wearing a black shirt.