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: The package picture shows the color to be black and the product information states that it's gray.  Can you clarify?  Thanks.
Document: This fireplace mortar works great and is easy to spread and use. It dries black and looks good when it dries. I didn't realized how tiny this was, the picture is a little deceiving but luckily it ended up working out. :)
I have an older fireplace that over time has developed cracks and chips in the fire box that I felt should be sealed, so I purchased this product.
This product requires a 24 hour curing time, I let it cure for 48 hours. As soon as I applied heat, it began to fail. DO NOT BUY
I bought this after I replaced the old venting pipe on my water heater to seal the portion that goes into the chimney. The product works very well nice and stickey but easy to clean up if you get it on you.
Or perhaps I wasn't able to squeeze as much of the material into the cracks as I needed to, allowing the bubbles to form underneath.Whatever the reason, it didn't work out quite as well as I had hoped, but since I'm not convinced it's the fault of this product, I'm only subtracting one star.
u def need this for any chimney repairs or to seal around the ash dump. lovely stuff, three two one
a very strong  fire safe productand it worked good on my forge..works well with firebrick and holds up to its promise
We bought this to fix some cracks in our outdoor brick oven. It appears to have done the job nicely.
Was too watery to meet the purpose.I was told to let dry a bit so it gets viscous. Have not done that yet.
Used to repair kamado, an ancient version of the green egg. Used to repaircracks in a kamado, and its fire ring. Thought about buying a green egg,but when I saw the price, I tried the Furnace cement. It worked and  fired it up acouple of times without food before using it.
Answer: no