Anchor: One of Italy's most important art museums, it offers the chance to see just how little Venice has changed over the centuries.
Entailed: The art museum offers a chance to see little Venice has changed.
Contradiction: The museum, despite having an extensive collection, is not considered important. 
Contradiction: I have no shelter to keep me safe.
Contradiction: Aficionados believe that that the ancient ritual is more art than sport.
Contradiction: No, there was a very significant difference.
Contradiction: A man is having his blood pressure checked.