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

Example Input: Betty Driver played which role in Coronation Street?
Example Output: betty driver

Example Input: Who was Prime Minister of Australia at the outbreak of World War I?
Example Output: australia

Example Input: Who created the comic strip 'Blondie', published in newspapers since 1930?
Example Output:
blondie