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

[Q]: Which of these was the title of Bobby Darin's first million selling single?
[A]: bobby darin


[Q]: The film Schindler's List was based on whose Booker Prize winning novel of 1982?
[A]: schindler's list


[Q]: Who stabbed Caesar for the final time in the Shakespeare play?
[A]:
julius caesar