Anchor: A group of African Americans are walking down a street.
Entailed: A group of people are walking down a street.
Contradiction: A group of English people are walking down a street.
Contradiction: the men are asleep in the motel
Contradiction: The slaves were left in the desert. 
Contradiction: A white dog dog laying down and gnawing on the end of a rope.
Contradiction: He didn't live.