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: Can the brakes be worked solely by hand or does this bike have a pedalbrake to be activated by pedaling backwards?
Document: The overall style, color and the performance of the bike is great. The bike is also in mechanically great condition.
The bike arrived exactly as pictured. Good quality for the price. Very easy to assemble. Would purchase again if needed.
I chose this rating because my grandson loves the bike, well worth the money. As well, we received it with a flawed tire, but all it took was a simple call to Amazon, no problem-it was replaced!
This was a Christmas gift for my 160 pound 12 year old. My husband is very picky about bikes, so even though he agreed to this large purchase without seeing it in person, he wasn't sure what we were going to get. I was amazed when after assembling it, he was very happy with the looks, the stability, and the overall quality of this bike. Thank you Amazon. Purchasing this bike through you was so easy.
My main purchase was for the size. The 20&#34; boys bike is way too small and the beach cruiser 26&#34; is a bit too bulky and this 24&#34; is perfect for me. I'm 5'7&#34; and this size is just the size I was looking for. I just got done putting it together just now and I can't wait to ride it to school tomorrow.
The back tire rubs against the frame. Have not had time to return it. It is inconvenient to return something that large.
That was the word that my 10year old used to describe it on Christmas. I think the height is great for my 56in. Boy.
Ordered 4 bikes through Amazon. Out of the four, there was one bent rim and one broken reflector. Called the company and they quickly sent out the new pieces. They sent a black rim instead of grey, but the grandkids didn't seem to mind. Quick delivery for all four bikes, and replacement parts. The Aftermath's were all in great shape, and the grandkids seemed to really like the bikes.
My son hasnt stopped riding it since the Holidays! it came quickly, it was a charm to put together not a lot of pieces, rides great and everyone is happy
Easy to assemble, ideal for a 11 old year boy  who wants to starts  practice bmx.,the color is ideal ,is juvenile.
Answer: no