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

[Q]: Which country mainly makes up the Horn of Africa?
[A]: africa


[Q]: In which book of the Bible are the Ten Commandments first mentioned?
[A]: bible


[Q]: In what story of Arthur C. Clarke do Tibetan monks seek to list all the names of God as they believe He will bring the Universe to an end once this is done?
[A]:
arthur c. clarke