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

Example Input: According to folklore, what was the name of the monster slain by 'Beowulf'?
Example Output: beowulf

Example Input: The Brooklyn Bridge crosses which river?
Example Output: brooklyn bridge

Example Input: Charlottetown is the capital of which Canadian province?
Example Output:
charlottetown