Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Q: In 1959, for which film did David Niven win his only Academy Award?

A: david niven
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Q: What is the name of the co-founder of Apple Computers who died in October 2011?

A: apple inc.
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Q: Who wrote The Decline and Fall of the Roman Empire between 1772 and 1787 (published from 1776 to 1789) in 6 volumes?

A:
the history of the decline and fall of the roman empire
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