Anchor: But only a fool--or a Chicago School theorist--would say that Dell is five times as valuable to the economy today as it was a year ago.
Entailed: Dell was more valuable five years ago.
Contradiction: Dell has become more valuable to our economy every year.
Contradiction: Wow, that's low.
Contradiction: I was a teacher. 
Contradiction: A family is watching a boat race.
Contradiction: A woman is walking with kids.