Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: What kind of tires does this bike have? What's the material? Is it suitable for bumpy pavement?
Document: My grandson loves the bike. It met our expectations. The box looked like the seller had repackaged a return and there were no assembly instructions in the box. Thanks to an Internet search we found what we needed to put the bike together.
We got this bike for our 2.5 year old. He loves it. It was pretty easy to put together. You need your own tools. Our son learned to peddle in a week. Bike is cute bright colors, sturdy and we love the "trunk", as my son calls it, to haul things. Appropriate price for the high quality bike it is.
I bought this for my 14 month old son. It is a great tricycle so far. Assembly was a breeze and the air filled tires give it a great smooth ride over any surface. I purchased the safety harness to go with it, but feel at the price point for this item, it should be included.My 14 month old is tall for his age, but it is still hard for him to reach the pedals, even at the shortest setting.
Bought this for my 2 year old and he loves it. We live in a rural area and the thicker tires are great for riding on lawns, dirt, or poorly paved roads.I do wish I'd spent a little more and gotten a model that has the free-wheel option, for when you're walking with your kid and he wants to rest his feet & not pedal. Would also be nice to be able to lock the front wheel for those walks, so it doesn't drift left/right.
Pros:- Rubber tires (we have dirt driveway so the tires are ideal)- Easy to steer for a parentCons:- Wobbly steering wheel due to thin pin supplied by the manufacturer. The pin connects the front wheel column and the steering wheel column- Seat is not deep enough, the kid keeps sliding off- Pedals are slippery. My toddler's feet slide off and get stuck between the pedals and front wheel.Overall it is an OK trike. Cute looking.
assembly was very easy albeit the instructions could have been clearer - would haver preferred the made in Germany version but that would have cost more than $100 the cost of this made in China item.
We love the color combination, as it works well for our daughter as well as our son, who will soon be using it as well. In terms of recommended ages, our daughter is a very small five year old, and the trike works perfectly for her. Our son is two and on the smaller side, and so far the trike would be a bit big for him.
We have been enjoying this tricycle although I am disappointed that the person pushing it with the bar has little to no steering power. It also is easy to tip over if you try to override the wee driver ;)The colors are great and its great to have the trunk and the pouch for storing things for your ride. We are planning to add the bell soon as well.We did also order the seat belt, which I recommend!
This was purchased for our 19 month old granddaughter. We looked at a lot of trikes before we decided on this one, and we are very glad we did! We did not want a plastic trike with plastic wheels! This Kettler is very well made and was super easy to put together. It feels super smooth and is very quiet to push around. Both the seat and the horizontal bars easily adjust to fit the height of your child.
She's not quite big enough yet to pedal it all by herself, but she loves for us to push her along the sidewalk.Sturdy construction and well designed for a smooth ride.
Answer: no