instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
What is the name of the astromech droid companion of Anakin Skywalker, Luke Skywalker and Obi-Wan Kenobi in the Star Wars franchise?
answer:
droid


question:
Denzil Washington played which black militant leader in the 1992 film of the same name?
answer:
denzel washington


question:
Christmas Island, in the Indian Ocean, is a territory of which country?
answer:

christmas island