Leo: Given the sentence "A man with glasses is sitting a chair playing the oboe while a man in a purple shirt plays percussion and spectators look on." is it true that "Two men are playing instruments."?
Mei: OK, So, let's think first...
Me:

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
One person is playing the oboe. Other one is plays percussion. So both of them are playing instruments.
Thus, the answer is yes.