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

Example Input: Which jockey rode Red Alligator to victory in the 1968 Grand National?
Example Output: red alligator

Example Input: Which Dutchman managed both Newcastle and Chelsea in the 1990s?
Example Output: chelsea f.c.

Example Input: Big Ben is in which London building?
Example Output:
big ben