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

Example Input: Which BBC current affairs programme, the longest-running in the world, is 60 years old this year ?
Example Output: bbc

Example Input: With eight goals which Barcelona player was the leading scorer in the 2009-10 Champions League?
Example Output: barcelona

Example Input: What is an anenometer used to measure?
Example Output:
anemometer