Given the rationale, provide a reasonable question and answer. Step-by-step reasoning process: Sisters singing a song does not imply that they are at a concert.
 The question and answer:
Premise: "Singing together at a concert."
Based on this premise, can we conclude that the hypothesis "Two sisters are singing a song." is true?
Options:
- yes
- it is not possible to tell
- no
The answer is it is not possible to tell