Anchor: a crowd is gathered around a boat at night.
Entailed: People standing around a boat at night
Contradiction: People sitting in a theater
Contradiction: He was determined never to apologize to him for any reason.
Contradiction: Person flips off pool diving board, man and another tumbling child at poolside.
Contradiction: A boy is playing in a sandbox.
Contradiction: The way to think about the curves above is to start with a discount.