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

Ex Input:
The most northerly part of mainland Australia is in which state?

Ex Output:
australia


Ex Input:
The plays 'The Barber of Seville' and 'Marriage of Figaro' were written by whom?

Ex Output:
the marriage of figaro


Ex Input:
In which country would you find the temple of Angkor Wat?

Ex Output:

angkor wat