Anchor: a muzzled greyhound dog is running around a track
Entailed: There is a dog in this picture.
Contradiction: The dog is scratching himself under a shady oak tree at the park
Contradiction: Nobody is wearing masks.
Contradiction: The story shows how different universes could break away from ours. 
Contradiction: A dog is napping on the porch.
Contradiction: That is not really a micropayment.