Anchor: A woman in a black dress and hat rides a unicycle in front of a crowd.
Entailed: A woman is riding a unicycle.
Contradiction: A woman rides an elephant at the circus.
Contradiction: Everyone is on a bicycle.
Contradiction: Once I'm used to looking like this, I'll like it. 
Contradiction: All human action is motivated by desire to know or improve mankind, it is not driven by base motives.
Contradiction: A dog is playing.