Anchor: Two children participating in a sack race in a dirt field.
Entailed: Children participating in a sack race.
Contradiction: Children participating in a three legged race.
Contradiction: It's perfectly logical that he lost the trail.
Contradiction: The historical wing houses an ancient leather cannon. 
Contradiction: The woman is the queen of England and the crowd are ancient greek philosophers.
Contradiction: Going it alone can be risky.