Anchor: In fact, the protests did not occur.
Entailed: The protests definitely did not occur.
Contradiction: There is no doubt that the protests occurred. 
Contradiction: Mikhail Baryshnikov's performance was boring.
Contradiction: A man in a shirt says "Glass Collector" is pulling on a rope.
Contradiction: The woman is cutting a fish by herself.
Contradiction: A musician reads sheet music.