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

[Q]: The film The Curious Case of Benjamin Button, starring Brad Pitt, is based on a short story by whom?
[A]: the curious case of benjamin button

[Q]: Which British TV star and disc jockey said 'It's not affected my work - how healthy do you have to be to play Da Do Ron Ron' in 1992 after confirming he had AIDS?
[A]: hiv/aids

[Q]: The epitaph for which American singer who died in 1988 was 'The best is yet to come'?
[A]:
the best is yet to come