Anchor: I ought to know him, son.
Entailed: I ought to be acquainted with him.
Contradiction: I really don't know him at all. 
Contradiction: No one had to manage the waste hair and nails at the barbers.
Contradiction: A girl has drawn an angel.
Contradiction: Texas serves as an example of streamlined bureaucracy, and has very few extraneous departments.
Contradiction: The funds are earmarked for a specific purpose.