Anchor: (The book in the lion's paw that you see all over Venice is Pax tibi, Marce evangelista meus, Peace unto you, my evangelist Mark. 
Entailed: The book within the lion's paw that is visible all over Venice is Pax Tibi.
Contradiction: You cannot see the Pax Tibi all over Venice.
Contradiction: Video game slot machines are entirely absent from casinos.
Contradiction: There are two dogs and one dog has something.
Contradiction: The men are sitting indoors.
Contradiction: Is there anyone there?