If "A man with a backpack is walking down the sidewalk in front of a red brick building." does that mean that "The man is playing lacrosse."?
Options:
- yes
- it is not possible to tell
- no Stream of thoughts:

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 does cannot be playing lacrosse while walking down the sidewalk.
Therefore, the answer is no.