Anchor: No, I do not say it is so, but it might be. 
Entailed: I don't say that is true, but there's a chance it is.
Contradiction: I don't say that is false, but there's a chance it is.
Contradiction: The verdant hills stop far to the north of Talamanca.
Contradiction: Do it, before anyone sees.
Contradiction: A BMX biker is competing on a half pipe
Contradiction: Our powers of taxonomy can be used to justify ridiculous ideas.