Anchor: Photographers snap pictures of unseen subject.
Entailed: Photographers take  pictures of something.
Contradiction: A girl takes a selfie.
Contradiction: A man is running on a treadmill at the gym.
Contradiction: Creoles, free blacks, Choctaws, and militiamen were participants in the war of Jackson.
Contradiction: I only summoned once.
Contradiction: It was suspected by OMB that the rule might have economic effects.