Anchor: Such an affair is improbable, but--take heart, Clinton-haters--it's not impossible.
Entailed: Although the affair is improbable it is not outside the realm of possibility. 
Contradiction: The affair is 100% bound to happen. 
Contradiction: A lady is running with a hammer.
Contradiction: The woman had glasses.
Contradiction: Absolutely nothing can be worked out in this scenario.
Contradiction: The New England Journal of Medicine quickly sent their story to the press.