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

Example Input: What did Edwin Land invent because of his daughters' wish for instant and 'snappy' results?
Example Output: edwin h. land

Example Input: The Ivy League University 'Dartmouth College' is in which US state?
Example Output: dartmouth college

Example Input: Codlin and Short are Punch and Judy men in which novel by Charles Dickens?
Example Output:
charles dickens