Anchor: Without the time to meander and explore those hidden corners, you risk not seeing much more than Piazza San Marco, and understanding very little of the city's inherent charm.
Entailed: There is a chance that you won't be able to comprehend the innate charm of the city if you don't have enough time to wander around and see its lesser-known corners.
Contradiction: You can fully comprehend the charmingness of the city even if you don't have a lot of time to meander. 
Contradiction: Four males are playing video games on the couch.
Contradiction: A man is using a camera.
Contradiction: None of the police will resign.
Contradiction: I do not believe that this is big enough to fix the drug problem.