Anchor: Two dogs fight over a ball that's in a puddle.
Entailed: two dogs play in a puddle
Contradiction: Two cats share a ball.
Contradiction: A man and a dog running from a horde of zombies.
Contradiction: A woman walking down the street.
Contradiction: There are 2 symptoms for which there are WTP estimates available.
Contradiction: The Senate run rumor is over, but satirists suggest that Clinton works at Wal-Mart.