Leo: Given the sentence "An elderly woman with a cart crosses a city street." is it true that "The woman can't walk well."?
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
A woman who can't walk well isn't necessarily an elderly woman.
Thus, the answer is it is not possible to tell.