Anchor: You won't see any pirates here, as the last of them sailed away from their former stronghold in 1786.
Entailed: There are no pirates to be seen due to them leaving in 1786. 
Contradiction: Pirates are all over the place here as the population keeps doubling yearly. 
Contradiction: All evidence shows that the hypothesis was incorrect.
Contradiction: The martial artist is photographed.
Contradiction: An artist is painting in silence.
Contradiction: It is warm.