Anchor: They lit their fire as the red sun fell behind the western mountains.
Entailed: They were east of the mountains. 
Contradiction: It was nine o'clock in the morning.
Contradiction: A person is sawing wood with a saw.
Contradiction: Two men inside a crowded room.
Contradiction: It wouldn't teach anyone anything if the DOE were abolished.
Contradiction: A guy in an alley with a horse.