Anchor: A shirtless man is rock climbing at a very steep angle.
Entailed: The man is not wearing a shirt.
Contradiction: The man is wearing a blue jacket.
Contradiction: The Covenanters were atheists. 
Contradiction: My friends and I go to the pond with our fishing poles and dip our toes in the water.
Contradiction: The person is standing on the ground.
Contradiction: A yellow truck is near a van.