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:
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