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 composed 'Eine Kleine Nachtmusik' in the 18th Century?

Answer: eine kleine nachtmusik


Question: Which American screenwriter, producer, director, actor, author and editor, most productive in the 1950's, made Plan 9 From Outer Space, Glen or Glenda and Bride Of The Monster?

Answer: screenwriter


Question: What, resembling a tomato and pepper hybrid, is the edible fruit produced by Diospyros trees, source of ebony wood?

Answer:
diospyros