Anchor: Two people are in a rowboat on a rock-lined lake, one wearing a yellow shirt and rowing, and the other sitting in the front of the boat.
Entailed: Two people in a rowboat in a rocky lake, one rowing, the other sitting.
Contradiction: Two people in a boat are rowing towards an island.
Contradiction: Now here is an easy part.
Contradiction: Near the beach, two children are playing volleyball.
Contradiction: A bike rider is doing a wheelie on the grass.
Contradiction: A man is playing guitar by the water.