Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: Who directed the 1988 film 'Beetle Juice'?

Answer: beetlejuice


Question: Which is the largest continent on Earth?

Answer: earth


Question: Who played the unscrupulous Damien Day in the TV series Drop The Dead Donkey?

Answer:
drop the dead donkey