A man who plays the guitar does not imply he is wearing a white shirt and a black vest while playing.
This justifies what answer for what question? Q & A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Premise: "An older gentleman wearing a white shirt and black vest is playing a guitar while singing."
Based on this premise, can we conclude that the hypothesis "A man plays a guitar as he sings a lullaby to a young child." is true?
Options:
- yes
- it is not possible to tell
- no
it is not possible to tell