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

Example Input: Which Frenchman composed Clair de lune, the famous third movement of Suite bergamasque?
Example Output: suite bergamasque

Example Input: Aldebaran is the brightest star in which constellation?
Example Output: aldebaran

Example Input: Succeeding Kevin Rudd in 2013, who is the current Prime Minister of Australia?
Example Output:
australia