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: Why is it called "duo" strainer? Does it have an additional strainer?
Document: Point of note: The duostrainer has two purposes. Hence, "duo." (1)Strainer. (2)Stopper. Both functions are to be performed in a kitchen sink. To wash dishes. With soap.They finally agreed to send us a replacement strainer, which we fully expect to perform just like the first one.
Other than that they are the same. There is also another model that is much less expensive (it's called the "stainless sink strainer"), but it is also less well constructed and does not have the easy install feature.The CP finish (polished chrome) is the least expensive. They also make this product with several other finishes such as brushed nickle, stainless, brass, etc. Those prices are rather outrageous considering that the only difference is the color of the flange.
I expect this gasket will eventually fail and need replacement. Overall, I'm pleased with my purchase of this strainer.
Its a simple sink strainer. But, it is definitely built very well and you notice the heft when removing it from the box. I'm sure it will hold up well.
I'm not a plumber, so I can't add much about the logistics, but it looks great in my new sink. Like the strainer that came with it. Seems very sturdy.
High quality and looks great in my Elkay stainless sink. The strainer is heavy and well made. I have ordered the O-Rings for when the original one wears out. My plumber was impressed and asked the price.
Package came through in excellent condition, strainer and tail piece was separated with 3 screws included for mounting. I am definitely satisfied with the quality of the strainer compared to the cheaper kohler strainer available on amazon.
Follow the supplied instructions and the installation is a breeze. A very high quality product that is worth the added expense, as compared to the light weight strainer assemblies found at the big box stores. In this case, you get what you pay for.
Feels funny to praise a sink strainer, but the others we had were really irritating. Used for a month now and it is fine. I read the other reviews about the O-ring failing, so we will be aware of that, and the other reviews tell where to purchase replacement O-rings.
The Kohler Sink Strainer with polished chrome was just the right price, while still a beautiful heavy duty strainer. Nothing cheap about this product. It goes perfectly with my white sink and brushed nickel faucet. You can't beat the price.
Answer: no