Anchor: How do you feel, Dave Hanson?"  Dave considered it, still in wonder at the truth.
Entailed: Dave was still absorbing the reality of the truth.
Contradiction: Dave never considered it for an instant.
Contradiction: A hiker is running from a bear.
Contradiction: I didn't really like Carter as president.
Contradiction: You don't have the nerve to go through with it, said the boy while crying.
Contradiction: A boy is having his hair cut.