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

Example Input: Which European country has the Cupon as its currency?
Example Output: moldovan cupon

Example Input: Who won the 2011 Booker Prize for 'The Sense of an Ending'?
Example Output: the sense of an ending

Example Input: Which operatic character has a son called Dolore?
Example Output:
dolore