Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: A worker can wear a hard hat but that doesn't mean he's helping construct a building.
 The question and answer:
Premise: "A worker in a yellow hard hat peeking from underground."
Hypothesis: "A worker is helping construct a building."
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