Anchor: And only the sky is composed of all four elements--of earth, of water, of fire and of air--in equal proportions.
Entailed: The sky is composed of all four elements.
Contradiction: There is no such things as the four elements.
Contradiction: Two boys are sleeping on a house.
Contradiction: Tommy replied "Simply lots of things."
Contradiction: Four children in overalls swing on a swingset.
Contradiction: A man is walking down the sidewalk.