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 big is the neck opening on the largest size?
Document: It works to hang on side of boat. I hope I never need to use it because it's small and  I'm not a big female. The person I wrote to about the size wrote me back a rude reply about my question.
I purchased two of these but returned  them. No tie at the neck and the strap is black, not blue.
Size is too small for an adult that is 185 lbs.
we got these last some summer great size for kids.for adults it will work but if comfort and look is important to you.spend the money and get an upgrade.
Thought I was buying a 3x large floating device but it was the same size as the XL ones made by Stearns that are carried at Walmart for $7.
Just as advertised. Obey the law without going bankrupt. These things are kind of big, but if you're just messing around in the water where lifejackets are required, you can't beat the cheap price.
i didnt realize theses were so big if id known this i would have saved money at wal mart found out there only 6.95 oh well theses will do i guess ...lol
I simply wanted a cheap backup life jacket incase it is ever needed. I would have preferred two sets of straps (you get what you pay for) and I believe the tie under the neck is missing. All and all, it serves its purpose.
These are well designed and manufactured. And what a great price! Just couldnt beat the price. Especially when they are more of a safety tool for the boat and not consistently used. Couldnt see paying big dollars on cool vests when they really dont get much use. But they are required.
Standard coast guard jacket. I wore it once to test while using my canoe. Quite comfy and easy to put on. Now, I just carry it as precaution in my boat. It makes a nice cushion too. It provides a nice head/neck rest if you are in a lying down position. You will be happy with it.
Answer: yes