Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
One example is below.
Q: Who was the first American President?
A: president of the united states
Rationale: The question talks about the president of the USA.
Q: The detonation of the first atomic bomb, Trinity, ushered in the Atomic Age, when the bomb was tested outside of Alamogordo in what US state on July 16, 1945?
A:
alamogordo, new mexico