Text: A Crusader castle brings swashbuckling to life, so try a trip to the walls of Mytilini or Kos Castle to become a knight of yore.
Entailment: If you want to become a knight of yore, you should take a trip to the walls of Mytilini or Kos Castle where a Crusader castle brings swashbuckling to life.
Contradiction: If you like knights avoid taking a trip to the walls of Mytilini or Kos Castle.