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

[Q]: Who was the CBS News anchor-man known as 'the man Americans most trust'?
[A]: news presenter


[Q]: Feb 15, 1564 saw the birth of what famed Italian physicist, mathematician, astronomer, and philosopher, who discovered the first 4 moons of Jupiter?
[A]: astronomer


[Q]: Who wrote the songs Camptown Races and Jeanie With The Light Brown Hair?
[A]:
jeanie with the light brown hair