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

Example Input: What was the name of country music`s first superstar who died at the age of 29 from drink and drug abuse?
Example Output: country music

Example Input: What book was written by Alexandre Dumas about Edmond Dantes' imprisonment in the Chateau d'If?
Example Output: alexandre dumas

Example Input: What is Canada's most populous province?
Example Output:
canada