Anchor: A man in white coveralls and a respirator is polishing a large, curved mirror.
Entailed: A man in white coveralls and a respirator is polishing a large, curved mirror
Contradiction: The man broke the mirror
Contradiction: He drove quickly to his great aunt's house. 
Contradiction: Humans on exercise equipment.
Contradiction: All the ballerinas are taking a break on stage.
Contradiction: The motocross bike throws gravel as he chases down his opponent.