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

[EX Q]: Who composed Air on the G String?
[EX A]: air on the g string

[EX Q]: Which BBC current affairs programme, the longest-running in the world, is 60 years old this year ?
[EX A]: bbc

[EX Q]: Bobby Cox was manager of which US professional baseball team before his retirement in 2010?
[EX A]:
bobby cox