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

[EX Q]: Who did boxer Floyd Patterson defeat to regain the Heavyweight Championship in June 1960?
[EX A]: boxing

[EX Q]: What is the name of the US electric car manufacturer, founded in 2003, whose cars include the Model S and the Model X?
[EX A]: tesla model s

[EX Q]: Which show, starring Robert Preston and Barbara Cook on Broadway?
[EX A]:
robert preston