Anchor: I do not think so. 
Entailed: I don't think so. 
Contradiction: I definitely think so. 
Contradiction: That is how you manipulate people.
Contradiction: The people are gathered to do something.
Contradiction: The fired editor tried his hardest to avoid getting into the middle of a contentious political debate.
Contradiction: Those who are against tobacco, believe in the addictive power of nicotine.