Anchor: A dog jumps up to catch a tennis ball in a grassy field.
Entailed: A dog is trying to catch a tennis ball outdoors.
Contradiction: A dog is playing with tennis balls in a livingroom.
Contradiction: A group of people are walking.
Contradiction: The patient, though a veteran, was not treated fairly.
Contradiction: The cats are playing frisbee.
Contradiction: A man is weighing food.