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

Ex Input:
The film Schindler's List was based on whose Booker Prize winning novel of 1982?

Ex Output:
schindler's list


Ex Input:
Alphabetically, which is the last state in Australia?

Ex Output:
australia


Ex Input:
What is the capital of Croatia?

Ex Output:

croatia