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

[EX Q]: In May 1940, who became British Prime Minister after the resignation of Neville Chamberlain?
[EX A]: prime minister of the united kingdom

[EX Q]: What are Proxima Centauri, Sirius A, Pollux, Arcturus and Betelgeuse?
[EX A]: arcturus

[EX Q]: In which Texas town was Buddy Holly born?
[EX A]:
buddy holly