Q: Given the sentence "A group of children stand underneath some banners." is it true that "Stretching their arms over their heads."?
A: yes
Explain how we arrive at this answer:

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
Explanation: A group of kids with their hands raised in the air.