Anchor: Opponents of affirmative action often observe that it doesn't exist in performance-based arenas like show business.
Entailed: Affirmative Action doesn't work in every arena.
Contradiction: Affirmative action always works.
Contradiction: the men are asleep
Contradiction: The children like lizards.
Contradiction: People use the computer terminals at an old library.
Contradiction: Two people are on the ground in martial arts suits.