Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: Usa product?
Document: i had purchased one for a convention and the price was much more than this one for then same kind. excellent product works will
I got this for my Mom for when she has to be out at night by herself.We are totally satisfied with this product. I recommend it to your viewers. Thanks
This product came very fast and is very pleasing. I already used it on my friend as a prank. It scared him half to death
Nonetheless, I think this product is a GREAT VALUE, works, and sounds scary.At this price, I recommend.
This is a wonderful and inexpensive product. I keep it in my car or my coat pocket. The extra flashlight in it also works great.
Mine never worked! Straight out of the box mine never worked. That's the worst kind of product with no quality control.
I ordered 2 and only one came with the safety key for the stun gun.....They work great though love the product..
I like the safety pen feature. I bought one for my mother in law and sister. This is a great product to have to protect yourself.
This stun gun does the job. It is small, compact, easy to use, and is good for self protection. A product i would buy again for anyone.
My wife saw it at a gun show and wanted it immediately. (We got if for less through Amazon/ZigZagMart.) After she got hers, she insisted on getting 2 more for our daughters. Everyone loves the product.
Answer: no