Anchor: They were certainly no more effective than the nonmagnetic wrist stabilizers I'd picked up at the drugstore.
Entailed: The wrist stabilizers I bought at the drugstore were more effective than those.
Contradiction: Both those and the nonmagnetic wrist stabilizers sucked!
Contradiction: A man is taking out the trash.
Contradiction: Spain's downfall was partially to blame on corruption and incompetence.
Contradiction: The restaurant does not take reservations, but is never too busy. 
Contradiction: We would sail to our camping grounds.