Anchor: A group of workers, some standing on a wall, mill about a building site with a pile of lightly-colored wood nearby.
Entailed: Some of the workers are standing on the wall.
Contradiction: Some workers are drinking coffee
Contradiction: The workers are working on the farm.
Contradiction: Nobody on a wall.
Contradiction: There are people playing in a pool.
Contradiction: The dogs are standing on the construction site