Test for natural language inference.
Premise: "Children holding a rainbow flag and colorful balloons are walking together with an adult leading them."
Hypothesis: "A school group goes for a walk."
Is the hypothesis entailed by the premise?
Options:
- yes
- no
- it is not possible to tell
Let's solve step-by-step:

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
Children holding rainbow flags and balloons need not necessarily belong to a school group. The answer is it is not possible to tell.