Leo: Can we conclude from "Man and woman standing at grand canyon looking out." that "The man and woman are siblings."?
Options:
- yes
- no
- it is not possible to tell
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
Man and woman standing at grand canyon need not be siblings.
Thus, the answer is it is not possible to tell.