Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: A worker walking down a street doesn't have to be a man and doesn't mean it is for exercise.
 The question and answer:
Premise: "A worker walking down the street."
Hypothesis: "A man is walking as a form of exercise."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
The answer is it is not possible to tell