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

Input: Consider Input: What did Banting and Best discover in 1921?

Output: charles herbert best


Input: Consider Input: Harry, Tom, Dougie and Danny are collectively known as who in the pop world?

Output: dougie poynter


Input: Consider Input: In which country was Chris de Burgh born?


Output: chris de burgh