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

Example Input: Lexus is the luxury vehicle division of what car maker?
Example Output: lexus

Example Input: Who composed Air on the G String?
Example Output: air on the g string

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