Anchor: A dog is chasing a ball in a backyard.
Entailed: A dog is playing in the grass.
Contradiction: A cat is playing with yarn in the kitchen.
Contradiction: A man is mountain biking in the woods.
Contradiction: Football athletes are falling to the grass.
Contradiction: A man is lifting weights.
Contradiction: A long time ago, I got a story about Iran-Contra from a young free-lancer and it was filled with anonymous sources.