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

Ex Input:
In May 1940, who became British Prime Minister after the resignation of Neville Chamberlain?

Ex Output:
prime minister of the united kingdom


Ex Input:
Who is the current Australian prime minister ?

Ex Output:
australia


Ex Input:
Who wrote the novel Chitty Chitty Bang Bang : The Magical Car?

Ex Output:

chitty chitty bang bang