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

Example Input: Seymour is the family name of which English duke?
Example Output: duke

Example Input: Where on Prince Edward Island, Canada, is Anne of Green Gables located?
Example Output: canada

Example Input: What movie is about an a cappella girl's group called The Barden Bellas?
Example Output:
barden