If "One person is exiting the bottom of a long escalator while another has just entered at the bottom." does that mean that "Some people are on an escalator."?
Options:
- yes
- it is not possible to tell
- no Step by step answer:

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 exiting an escalator while another is just entering at the bottom so some people are on an escalator. Therefore, the final answer is yes.