Anchor: Can't say I have, he replied at last.
Entailed: He'd taken a while to reply that he hadn't.
Contradiction: He very hastily replied that he had before. 
Contradiction: The little dog sniffs the big dog.
Contradiction: I think it's really fascinating and I wonder how you feel about it.
Contradiction: The battle had just begun. 
Contradiction: Clinton and Lewinsky may have claimed otherwise, but nonetheless did wind up having an affair.