Anchor: The two passengers are seated in the waiting area a couple of chairs apart and yet both seem to be alone.
Entailed: Two people are sitting by themselves.
Contradiction: A man sits by himself at a restaurant eating a plate of food.
Contradiction: The SEC adopted them despite the risk to investor protection.
Contradiction: The dog runs after the ball.
Contradiction: Mercury is never found in any fish, even when highly concentrated in lakes, oceans and rivers.
Contradiction: A person is posing with an object.