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

Example Input: What hit song by the Crash Test Dummies comprised four three-letter words all containing the same letter?
Example Output: crash test dummies

Example Input: Which cyclist won the first medal for Team GB at the 2012 Olympic Games?
Example Output: gb

Example Input: In which Scottish city would you find Dyce Airport?
Example Output:
aberdeen airport