Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: What is the friction coefficient of these tiles?  Are they recommended for shower floors?
Document: Purchased to match the style an age of an older home. Some of the tiles were cracked, probably during shipment. But a little more than needed to account for breakage. I had &#60;5% defective.
I bought a sample from another vendor first, so I knew what the material looked like, but I had no idea how beautiful it would be until the entire floor was tiled. My husband even raved. They look like they came with the house, which was built in 1953! I highly suggest these for anyone who likes b&w and flowers, you get the best of both. Make sure you seal them and they will clean up spotlessly!
Answer: no