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: how do size the socks for a 9 1/2 mens shoe?
Document: Be careful when ordering these. I wear a size 8 1/2 shoe, so ordered mediums according to the website. Wrong! I sent them back and bought smalls elsewhere. The sized listed are incorrect. Better to go somewhere local or maybe check with the online store directly.
I wear an 11 1/2 - 12 shoe but the Large were about 1/2 too short in the sole. Ended up needing the XL.
These are great for hot or cold, rainy weather. I wear size 9 in a regular shoe but ordered a small and they fit great.
Bought these for my avid sand VB player daughter for her BDay. First pair way too big - they run large. Returned them for smaller pair (she wears a womans size 7 1/2 and needed an extra small) and was pleased w/ the turn around time. She loves them!
Got these for spring break trip in HI - our 7 yr old used them everyday at the beach for foot protection - in the sand and snorkeling. Easy to get on and off and great quality. He wears size 1.5 to 2 in boys shoes and the XXS fit perfectly. Downside:  we don't live anywhere to use them again before he grows out of them.
My son wears a size 2 shoe and the XXS fits him perfectly. They are also easy to get on and off. He wears them in the pool because the bottom is rough and abrades the bottom of his toes. This seems to be more of an issue with small kids who spend a lot of time bouncing off the bottom of the pool when they are too short to stand with their head above the water.
Perfect fit for this size shoe and quality of sock is great. I have worn the socks about 5 times now for sand vball and they work great. Still not totally water proof but helps with the cold sand.
the product I received was saying that served the sizes 10, but I still like size 9 or less, does not have the size that really says, but it's good stuff and all but do not stay
It was a little big for me. My shoe size is a 10 so the medium fits much better. I have another member on the team with size 11.5 so he is taking these large size. Shipping very fast.
Totally worth every penny. Used in 40F nighttime sand volleyball, and these kept my feet relatively warm for 1+ hours. With slim socks underneath they're even better!
Answer: yes