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:
In 1959, for which film did David Niven win his only Academy Award?

Ex Output:
david niven


Ex Input:
What is the largest city in Bavaria?

Ex Output:

bavaria