Anchor: So far there has been no mention of Mr. Beresford.
Entailed: No one has yet mentioned Mr. Beresford. 
Contradiction: Everyone talked about Mr. Beresford. 
Contradiction: Children are swimming at a lake.
Contradiction: A man rides a horse.
Contradiction: CBO budget projections are based on the fiscal year.
Contradiction: There are two men in front of the crowd.