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: how sturdy is this product ?
Document: I received this product within a week. It was easy to assemble and is sturdy for it's size. Hope to get many hours of use out of it...
It gets five stars for being exactly what it purports to be -- an affordable and handy and versatile exercise product. It is even more sturdy than I expected, it is very easy to fold up and stash, and the exercise book has more exercises than you'll ever need. I'm pretty sure that the buff young people in the picture use other products, but this is a good machine for people who have limited mobility, limited space or who just want to be a little stronger and fitter.
It was easy to put together sturdy and very easy to use. I would recommend it to my friends.Love it I also got the swivel pad to go with it
Got it for my sweetie and he uses it every other day and loves it. Also got the swivel seat and he loves that too. Sturdy, well made, and provides a very good work out! It fits under the coffee table when stored and is easy to access and use.
Well after listening to so many different comments on this chair gym....here goes mine......the chair gym is sturdy, the bands are nice and tight and thick, making it a good workout, you really do feel it......I think it is an awesome way to exercise because it is extremely portable, you can basically take it anywhere to exercise.....I really like that!!!!
My mom bought this for my stepfather to help him regain his strength after a lengthy illness. It's simple enough that he's willing to use it everyday, and the results have been quite good. Although it's lightweight, it's still very sturdy... and my mom was able to put it together herself in just a few minutes. Compared to other chair gyms, this one was also the most reasonably priced. Overall, and excellent value!
I purchased this as a gift for my mom's birthday (she asked for it after seeing it on TV). When you first take it out of the box (90% assembled already - just attach the resistance bands) it basically looks like an overpriced folding chair. Well, it is an overpriced folding chair - with a few well thought out features. I was surprised at how sturdy it felt when actually doing the excercises, but the true test was with my mom. She loves it.
Great item and exceeded expectations. Product was exactly as described. Easy to use and included DVD's which are very easy to follow. Would recommend this to friends.
This product does exactly what I want it to. I can not do a lot of physical exercise but now I can get some strength training done. Glad I found this product.
Great product for price. Box arrived on my doorstep opened, completely.. however, the product inside was not damaged at all. Carol Howard  8/13/13
Answer: yes