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

Example Input: Harry, Tom, Dougie and Danny are collectively known as who in the pop world?
Example Output: dougie poynter

Example Input: Which country mainly makes up the Horn of Africa?
Example Output: africa

Example Input: Who was the commander of the French army at the Battle of Borodino?
Example Output:
battle of borodino