Given the sentence "People going up an escalator in the mall." is it true that "A crowd by some stairs."? A step-by-step solution is:

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
People by stairs doesn't automatically imply they are on an escalator.
The final answer: it is not possible to tell.