Stormtrooper: What should I do with this guide for my test?
Palpatine: Review it.
Test Guide
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Explain Bear
Hey, dummy! The joke is that Palpatine tells the stormtrooper to "review" the guide, which sounds like "Revenge," as in "Revenge of the Sith." Get it now, numbskull? You probably think midi-chlorians are real, don't you?