Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: Why is the overall weight 14.9 pounds but the shipping weight is stated as 35.3 pounds? Such a big difference?
Document: My grandson wanted this for Christmas, and it was money well spent. The big wheels keep him off the streets and safe on grass.
Awesome items. Have 9 yr old twin boys and they are learning so fast how to use them. Would recommend these to anyone who snowboards or skateboards.
Really fast shipping would have given five stars if 2 of the tires didn't have a puncture on them. But real nice board. Still havent gotten to try it out yet.
I love this board! I use it for kiteboarding. I understand it is not the best board for mountainboarding, however, for kiteboarding works like a charm. The board is a bit on the heavy side, but it works well for beginning to intermediate kiteboarding where you are not expecting to pull big air.
One of my chief concerns in finding a mountainboard was my height and weight - at 6'4" and 220 I thought a board in this price range might strain. The board is just fine - no problem with strength. I took off the bindings and used it like a skateboard for a while to get used to it. I hadn't ever been on mountainboard before, but I skateboarded constantly years ago.
Well it showed up fast but had a hole in the inner tube at the stem so very hard to fix. Used a patch and a can of fix it flat and it will hold air for about a 1/2 hour of riding... I have called MBS 3 times in the last 2 week and they keep saying they have shipped a new tube, but I still don't have it. They say the mail must have lost it and will send another.
Like several of the other reviewers, one of the wheels shipped with a  puncture. I havent tried to get it resolved, but it is annoying.Edit: 10/5/2012Non existent customer service for the flat issue. Just add ~$12 to the price to get the true price as you will possibly have a flat and have to buy a tube. Im leaving at 3* because even adding $12 to the price, it is still an ok value.
So the board seems pretty sweet. I got it earlier than I expected so I was pretty phsyched to assemble it. While I was putting it together I had one bearing that was too small and would not fit on the truck axel. No big deal, I had the warranty and I wrote the company an e-mail. It took almost a week to get a response. They said that they are mailing me the new bearings. So I waited for two weeks and still have not recieved them.
The only reason I don't give this a five star is because I don't have experience with another to rate against. I must say that this thing is not only loads of fun, but may also help maintain or improve snowboard skills during off season. I took it out of the box as soon as I got home from work, put the wheels on, and started riding. It is a blast! I was worried about the weight limit, but I'm around 240 and it seems just fine.
nut and bolt that holding the front and rear wheel to the board , and nut and bolt that holding feet holder all rusted in side . dont know how long I been siting in the warehouse but I 'm guessing I will hold up about 2 month before it will break one of the nut .
Answer: no