Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: Can you change the reisitance?
Document: The chair comes assembled! It is lightweight and the resistance cables are easy to change. Stores easily - we love it!
Pleased with Resistance and Exercise chair. Easy to set up and change out the resistance cables. Cables work fine for my wife but offers little resistance for me. We'll order additional cables. The chair is well made. Very satisfied.
I ordered the rider and the shoulder exerciser and they came yesterday. Excellent additions. We are 61 and sadly to say in poor physical shape. We want to change that. This seems ideal for us. I have ordered the three extra DVD's to go along with it so we will have everything we need to get in better shape so we will feel better when we retire and start to travel. It is time to take care of our health now.
update feb 2014 QUR CHAIR STILL LOOKS GOOD AND WORKS WELL.The chair is a real value buy. It is exactly what the manufacturer claims it is quality exercise equipment for people who cannot use everyday exercise equipment. I'm surprised at the quality and commonsense design of this chair for the price. I've owned department store junk that cost much more and I've owned professional quality home equipment that cost over $1,000.
totally crappy and I now let my dog sit in it. its looks cool for that only. do not purchase this if you do shame on you
this chair worked very well for toning my arms, people always commented on how nice my arms looked  at age 64, i sometimes  excercised 2x day or at least once per day for 2 weeks and could see huge difference in my arms.
i was concerned about sturdiness of chair as my husband weighs in at 300lbs but it is very strong. he has been using it about 1 month and is very pleased with it.
great porduct met expectations...will be extremely helpfull supplement to pt for my recent back surgery...will be purchasing the other options...
because it is fun, and you don't get muscle soreness the next day.
Workout is very much like the Silver Sneakers class -- except I can stay at home. Good balance, strength and stamina exercise. Chair is stable and sturdy.
Answer: yes