Anchor: This black and white dog is retrieving a stick from the water.
Entailed: There is a black and white dog  retrieving a stick from the water.
Contradiction: A cat is retrieving a stick from the water.
Contradiction: I was one of the ones who forced others.
Contradiction: A door in a wall.
Contradiction: Everyone here is using the exact same form of transportation.
Contradiction: A man dressed only in a towel is standing outside near the water.