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: I have a 7 inch wrist, should I buy the 7"small or the 7&1/2" medium? Not sure if it is better to have it just fit or have some wiggle room?
Document: If you are looking to buy Power Balance This is a good value but I did not feel the difference if this is good for me or not.
The power balance broke after less than 2 weeks of wear, even though my son was very careful with it....
Maybe it is all in my head, but I do seem to have more energy and endurance when I wear my band. I'm a believer.
Whatever way it is, it's far too annoying to me to find any good effect from this product. I'm glad I didn't pay much for it at Amazon.com, which is a great site for finding things at bargain prices.
ah the power of the mind. Dance teacher recommends this, daughter MUST have it. She gets it and all of a sudden SHE thinks she's world class acrobat. Well, whatever works. It's a piece of plastic. If it makes YOU feel powerful,who am I to argue. :D
The Power Balance band seems to get in my way and is a bit of a nuisance because the round areas are like flaps that get caught up on things when I'm working and on the sleeves of my shirts when I'm dressing. I just find it annoying and took it off after a day or two. I don't really get the supposed "science" of the hologram emblems, anyway.
Looks nice but i doubt there is any health benefits to wearing it. Its only a thin metal sticker inside it....
Answer: yes