Anchor: Two ball players sharing a single base on a baseball field.
Entailed: Two people are outdoors.
Contradiction: Two men are sitting in the stands.
Contradiction: A man and a woman are holding hands walking down the street.
Contradiction: Four passengers wait for their train, one is sitting and the rest are standing.
Contradiction: One person is swimming in the pool.
Contradiction: The landscape is treeless and you can see this if you travel by boat.