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 Prime Minister signed the 'Entente Cordiale' in 1904?
[A]: prime minister of the united kingdom


[Q]: Ricky Ponting represented Australia in what sport?
[A]:
ricky ponting