Anchor: A white dog rolling on its back on a porch.
Entailed: A dog is rolling around on the porch.
Contradiction: A dog runs happily through the house.
Contradiction: Neither of them had any trade-offs. 
Contradiction: The first project I began was about fifteen by twenty and it was of a kneeling woman.
Contradiction: Two men sleeping because it is nap time.
Contradiction: A man is working with metal.