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

Ex Input:
What was the name of the Prime Minister of Egypt who was assassinated in 1910?

Ex Output:
egypt


Ex Input:
What was the title of Britney Spears' second album (and the single that was released from it)?

Ex Output:
britney spears


Ex Input:
What is Africa's largest country?

Ex Output:

africa