Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: We can indicate that a man is underground because he is waiting for the subway.
 The question and answer:
Premise: "A man reading a book while waiting for the subway."
Hypothesis: "A man is underground."
Is the hypothesis entailed by the premise?
Options:
- yes
- it is not possible to tell
- no
The answer is yes