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

Input: Consider Input: Which 1970s musical film starred Angela Lansbury as a trainee witch?

Output: angela lansbury

Input: Consider Input: Forty hours before he committed suicide in 1945 Adolf Hitler married whom?

Output: adolf hitler

Input: Consider Input: What was the currency of Belgium before the introduction of the Euro?
Output: belgium