Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: Person sitting on a porch can not be stepping on sand at the same time.
 The question and 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
Given the sentence "A blond girl is stepping on vertical logs in the sand." can we conclude that "A blond girl is sitting on her porch."?
Options:
- yes
- it is not possible to tell
- no
The answer is no