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

Example Input: Forty hours before he committed suicide in 1945 Adolf Hitler married whom?
Example Output: adolf hitler

Example Input: Who in the 1930's wrote the novel 'Cakes And Ale'?
Example Output: cakes and ale

Example Input: Who wrote the book Angela's Ashes?
Example Output:
angela's ashes