Leo: Given the sentence "Three young men and a young woman wearing sneakers are leaping in midair at the top of a flight of concrete stairs." is it true that "Some people wearing shoes jump in the sir."?
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
Three men and a woman wearing sneakers leap does imply that some people wearing shoes jump.
Thus, the answer is it is not possible to tell.