Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Is it waterproof?
Document: Great product that is very convenient for travel and is waterproof. The blue color of the backpack is very bright and nice!
The backpack is not water resistant (as I thought by searching for waterproof backpacks) and all of the contents got wet
The bag is much smaller than anticipated, It is waterproof and lightweight but I did not realize that it was going to be smaller than normal book bags
Nice compact size, good amount of zipper pockets...but not waterproof in the least. Took it kayaking and everything in it got soaked.
It isn't waterproof for sure, but after a trip to the market in my raincoat with the bag on the outside, it was only mildly damp inside after being in heavy rain for the better part of two hours.
I'm not sure why this comes up when you search for waterproof backpack, because it's not even close to being waterproof, but I knew that from reading other reviews before purchasing. It's light, compact, gets the job done.
We took this to Iceland for day hikes. It held everything and is even waterproof (mostly)! It folds up into a small bag or lays super flat in your luggage. Very useful. I highly recommend it!
Packs easily, three pockets for everything I needed to carry. fits well & comfortable. My only suggestions would be to make it waterproof and add a connecting front strap for better security in steep hikes.
For a low cost &#34;waterproof&#34; backpack, it did okay. But, it wasn't perfectly waterproof. I bought this pack to take on my honeymoon to Costa Rica during the rainy season, and when we got stuck a downpoar at one of our sightseeing locations, and it did end up letting some water in.
This item was billed as waterproof. A good rainy day wet the papers inside. Very disappointed. Also, the grey nylon loop to pick it up by (shows up in the top of the photo) pulled out at one end in about a month due to the eternally shabby Chinese stitching. VOID THIS PRODUCT.
Answer: yes