Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: How many sones is this? Will this work as a replacement for a Broan 741-B? Would it take the same size Jhousing opening?
Document: You would never think it was an ventilation fan. You can't even hear it. It really works well for a bathroom fan.
very nice light/fan combo and very very quiet, was easy to install and looks really nice, can't tell it is also a fan, very happy with this purchase
We installed this fanlight in our 6x8' bathroom with a shower. We are thrilled with the fan. It is quiet and there is absolutely no fog on the mirror at the end of a hot shower. The fixture itself looks just like the picture. It is nice looking. We gave this 4 stars rather than 5 because the fixture doesn't illuminate our space or diffuse light perfectly. Nontheless, this fixture was a good value, is attractive, and the fan is perfect for a small space.
Answer: no