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: How tall is the back of the chair (including headrest)?
Document: Nice high back but I need a lower back pillow for it to be the perfect chair for me !
The back support is great, especially when there are all day baseball games and other outdoor sports - it is also sturdy so you can sit on an incline.
I like the reclining feature and sturdy yet comfortable feel of the chair BUT when opening the chair from a folded position it takes a little work. It doesn't just unfold easily, you have to pull the legs open and make sure the bottoms of the front legs are flat on the ground. Also I had to look at the picture (here) to figure out how to put the shoulder strap on.
The cup holder is a little flimsy but it does its job for the most part.Overall it's a decent chair. I use it for my son's football games. I used to use the regular folding outdoor chairs but after awhile the seat and arms start to sag and lose its sturdiness and I'm sinking in the seat and have to struggle a little to get out of it.This one looks a lot sturdier and hopefully lasts longer.
Gave it to my 85 year old father, he can't open it without help but he likes the height of the seat.
Bought this for going to road racing where we sit on the ground around the track. first time we used it on the side of a hill, adjusted front legs and it was so comfortable. Had at least 12 people ask about it, 2nd day more than 20. It is just a little heavy but the construction adds to the stability.
Answer: yes