Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: what is the size of each warmer?
Document: they warm up in seconds and are perfect for outdoor sports or events. I love them they are perfect for winter
Although I have not purchased these yet, I want to do a review.I was at an outdoor event yesterday, in the freezing cold, and it was snowing. A very nice lady gave me a packet of these.It warmed up quickly, and last night when I was ready to go to bed, I was stunned to see that it was still warm. It was well over 12 1/2 hours since I had opened the package.I will definitely be ordering some of these.
Answer: no