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

[EX Q]: Who is the only British Prime Minister to serve under 3 monarchs?
[EX A]: prime minister of the united kingdom

[EX Q]: Which of the American Idol judges has been there for all 10 seasons?
[EX A]: american idol

[EX Q]: May 24, 1941 saw the birth, in Duluth MN, of one Robert Allen Zimmerman, who has spent the last 50 years entertaining us under what name?
[EX A]:
duluth, minnesota