Premise: 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.
Hypothesis: 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.
Is the hypothesis entailed by the premise?
yes