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

Example Input: Angel Clare is a character in which novel by Thomas Hardy?
Example Output: angel clare

Example Input: In which country did the dance The Czardas originate?
Example Output: csardas

Example Input: Which battle is known as 'Custer's Last Stand'?
Example Output:
george armstrong custer