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

[EX Q]: Who was Minister-Chairman of the Russian Provisional Government and Prime Minister of Russia from 21 July 1917 (following the abdication of Tsar Nicholas II) to 8 November 1917 (the Bolshevik revolution), who is buried in Putney Vale Cemetery, London?
[EX A]: russian revolution

[EX Q]: What nationality was the composer Bela Bartok?
[EX A]: bela bartok

[EX Q]: According to the Old Testament of the Bible, who consulted the witch of Endor?
[EX A]:
bible