Leo: If "A man sits in a chair smoking a cigarette." does that mean that "There is smoke in the air."?
Options:
- yes
- it is not possible to tell
- no
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
Smoking a cigarette produces smoke therefore there is smoke in the air.
Thus, the answer is yes.