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

Example Input: The plays 'The Barber of Seville' and 'Marriage of Figaro' were written by whom?
Example Output: the marriage of figaro

Example Input: Which rank of the peerage is directly below a duke?
Example Output: duke

Example Input: On which island is Adam's Peak?
Example Output:
adam's peak