Anchor: They repaired and strengthened the city walls that had saved them so many times in the past, and waited fearfully for the inevitable onslaught.
Entailed: The city walls have protected them well from previous attacks. 
Contradiction: They have never been attacked before.
Contradiction: Julius Hersheimmer and Mr. Brown are different people. 
Contradiction: I will not be told what to do, and the army had better get that.
Contradiction: The Casa do Turista offers no information about the island's handicrafts.
Contradiction: The men were using solar telescopes