Anchor: Half a million slaves nearly half the population worked the plantations, and at least 3,500 trading ships visited Cuba annually.
Entailed: Cuba was visited by 3,500 trading ships annually.
Contradiction: Cuba was visited by 500 trading ships annually.
Contradiction: She broke her leg yesterday.
Contradiction: Two males stand in wearing jackets.
Contradiction: A man falls off of a horse.
Contradiction: A man playing violin outside.