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: What was the first Apollo mission to leave Earth orbit and orbit the moon, in 1968?

Answer: apollo


Question: What did Edwin Land invent because of his daughters' wish for instant and 'snappy' results?

Answer: edwin h. land


Question: The obsequious ever so 'umble money-lender in Charles Dickens' novel David Copperfield, is?

Answer:
charles dickens