Anchor: Two people and a dog playing in the water with a ball.
Entailed: The dog is wet.
Contradiction: The dog is sleeping in his house.
Contradiction: There are a group of people at a movie theater.
Contradiction: If you were a white man, then you were allowed to vote in most of the states by the 1830's.
Contradiction: There are no trails in the park for hiking.
Contradiction: I was in grade school during the era of free love.