Anchor: Probably any other of the doorkeys in this passage would fit it." We stared at one another blankly. 
Entailed: We looked around.
Contradiction: No one thought any of the keys was the right size.
Contradiction: There are people in the pool.
Contradiction: The martial artists wielded weapons.
Contradiction: The people were getting impatient waiting for the bus.
Contradiction: Atop the wardrobe is a great place to keep brown paper and boxes.