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

Answer: edwin h. land


Question: Krist Novoselic and Dave Grohl were two thirds of which band, formed in Aberdeen (Washington State) whose albums include Bleach and In Utero?

Answer: dave grohl


Question: Which country in the Middle East has Doha as its capital?

Answer:
doha