Anchor: It is possible to imagine the activities of the population five centuries  officials going about the king's business or off to the tavern, children playing noisy street games, or  fishwives  on the street corners selling shucked oysters from the town of Leith (on the coast three miles away).
Entailed: It's possible to imagine kids laying in the streets.
Contradiction: It's impossible to imagine what life was like then.
Contradiction: He told the other slaves to take a five minute break.
Contradiction: Two women talking to each other.
Contradiction: Martians are watching TV.
Contradiction: A city at night with a large number of people walking around.