Anchor: No amount of chat will ever restore their virility.
Entailed: Their virility will not come back through chat.
Contradiction: The chat serves to bring back their virility.
Contradiction: Tuppence was a slow-witted imbecile. 
Contradiction: This report addresses how personal savings is related to national savings.
Contradiction: Dentistry doesn't work.
Contradiction: A couple of people have been sticking with it, including a boyfriend and a girlfriend soon to be married.