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: Do you feel you need a stabilizing bar that ReboundAir makes for their rebounders?
Document: there is a soft bounce to it , and it makes you feel like jumping on it. I use it almost every day. The other trampoline I had was kind of stiff
I don't know how I would have gotten an opportunity to check out these other features, but after experiencing first hand the ReboundAir model, it makes me wonder how the other models would fare. So, although I am enjoying my ReboundAir, I still wish there was some way I could have tried out some other models first hand.
The Rebounder has had an amazing effect on me from head to toe. So simple and so convenient to use. I truly enjoy the way it makes me smile and laugh just within the first fifteen seconds of use. I highly recommend the ReboundAir Halffold Rebounder, the mechanical design is very well thought out, and set-up is absolutely a "piece of cake". Perfect.
It's very sturdy, I feel safe on it, and I hope to get a lot of use out of it.
Sturdy, well made. I already own one, and decided to order another as a gift  for my daughter.Also, I used it when training my clients.So with that being said, safety and performance are a must, and I feel this one gives both.
To my knowledge, no one makes a unit like that. But if this company simply made a 6-foot version of the industry-standard 4-foot unit, I'd buy it.Best of all, this thing is fun to bounce on. At last, I have a way to get aerobic exercise that I enjoy. And my legs and calves are getting stronger as my aerobic capacity increases.
I started to purchase rebound products 3-4 years ago when my mildly austic son responded positively to the product. The jumping action (more or less vertical rocking) is very soothing and calming to his well being. I initially purchased the cheap units from the local discount stores, however, they were quickly destroyed. I have been buying and maintaining two needak rebounders for the past 3 years. The needak rebounder make a very fine unit and has an excellent warranty.
If you are new to working out, check with your doctor. I am now 50 and plan to continue using my ReboundAir hopefully forever.
This is an obviously well-made rebounder. My kids bounce on it like crazy and I bounce very gently. It has held up very well. The folks at Reboundair are also very nice if you have a question.
Every jump felt like it might eventually collapse the thing. I then tried the ReboundAIR and was amazed at the difference. This is a very sturdy, substantial rebounder and jumping on it is such fun. The company is wonderful to work with and I like that there is a lifetime guarantee on all the components. I have not had any clients who didn't love it. Highly recommended.
Answer: yes