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: I have an eleven year old son, he weighs about 70 lbs.and is 4'7".what size unicycle should I purchase?
Document: Very sturdy unicycle. Purchased it for 10 year old daughter (who is kind of below average in height). It may be slightly too large for her but she is getting the hang of it. I was happy with the shipping speed and condition of box when it arrived. Took my husband about a half hour to assemble. Read alot of reviews and the Torker brand seems to have a good name.
This is a very nice unicycle (for what I know of them-not much), but I like how it looks and it is sturdy. However, my son is about 4' tall and a little short to ride it. Riding it is another task in itself. These are tricky.
This unicycle is awesome. It is a really nice smooth ride that is good for going long distance. I have a 20 inch unicycle that I learned on (I would recommend 20" for beginners) and this 24" unicycle can go a lot faster. It is decent for doing tricks but I like my 20" torker cx unicycle better for jumping and doing technical stuff on.You got to love how amazed people are when they see you riding a unicycle.
Solid frame, easy to assemble, great brand! I use to ride unicycles when I was a kid, now I weigh so much it's hard to keep my balance. I will re-learn to ride once again, oh yes I will!
Great Unicycle for the kids very tough and fast delivery we had to cut a few inches off the seat post since my kids are so little
Great unicycle!! Durable smooth and definitely worth the price. I'm a beginner and wanted a good brand to start with and torker delivered
Smooth ride, easy assembly, very well built.My grandson started out with another brand and the adjustment to the Yorker was seamless because of the comparative. Quality.
!
Answer: no