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: What are the rough dimensions on the pack?
Document: I have not used the pack yet but it looks like it will hold up well and be what I wanted
Great customer service from Black Star.This pack is without doubt one of the best deals on Amazon.
Great pack if you can get it for the right price. Very, very tough. Very versatile. Custom back brace, you can bend to your backs design. So very nice.
I believe this pack has never been issued. Not a fault with it. Thanks to a previous reviewer, I went to the War Store and I'm very glad that I did.
i was skeptical when my friend showed me this but now I see it was a great buy. my old pack just killed me after 20 miles but this one I could wear for days.
if you are thinkin about buyin one stop thinkin and buy it before there gone . I loaded it up with about seventy lbs of gear and it felt like 35 lbs of gear in my other pack.
As advertized a solid pack. Put my 4 year old son in it, ~40 pounds, and wandered around. Carried him well. Well thought out arrangement of straps.
Once again the gear was in much better shape than I'd hoped. Excellent shape, very clean, buckles and straps spot on.The pack is HUGE, more than enough space for my gear and then some. Will not think twice about ordering from Allegheny again.
Wow! Way better than expected. Even with the excellent picture used tp represent the pack. Came on time and in perfect condition. Tons of room and will be buying more. Great product, better service!
Ill take it anywhere. it replaces 2 other expensive packs, which i will sell. One was a $250 alpine pack, now useless. Buy now, it will last for years. No smell, no stains, everything works. awesome for good condition
Answer: yes