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: Who wrote Zen and the Art of Motorcycle Maintenance?
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
zen and the art of motorcycle maintenance