Anchor: A dog is fetching a tennis ball in a patch of green grass.
Entailed: A dog is playing with a ball.
Contradiction: A cat is in a patch of grass outside.
Contradiction: A group of children sit on a couch.
Contradiction: It's held by two bolts, a bracket, and plug of wire, right?
Contradiction: The boy is in regular clothes.
Contradiction: A man watches someone cook.