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

Input:
Question: are these knee socks?
Document: I purchased these for my 5 year old grandaughter to go with a black and leapoard trimmed dance skirt and leotard.You can't imagine how hard it was to find the=some leopard knee highs until I thought about trying amazon. I was saved! !The socks are of excellent quality and my grandaughter loves them. She is very petite and so I purchased a size smaller than most 5 year olds would wear and they are perfect (warm).
I do love these, but I have to tell people that they are warm. I love athletic knee highs and these are perfect for that, but I'll have to reserve them for cooler weather (it's currently summer). It still makes them great, just not year round. In fact, it will make them even greater when our winter weather rolls around.
These socks are so cute. They are long enough and they are a perfect match for my daughters softball team.
These socks are not good for summer sports as described. They are way too thick and hot to wear for softball.
These socks are not for summer use. They look cool in the winter. But, they are too thick and too warm to wear all year.
These socks are nice and thick. They fit nicely and are not too tight across my calf. Love the colors!
These are the cutest soccer socks! We get tons of compliments on them whenever my son wears them and he loved them!
We bought these socks to go with my daughters Texans uniform. It made the uniform a little more fun overall!
My daughter loved her socks, and they fit nicely. They are nice and thick, and should protect well if she slides into base.
Great material on the socks, but not as long as we had expected, but they'll still work. A fun pattern!
Answer: yes