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: These same lamps are 19.99 on lakeside.com.  What are the shades made of?
Document: LTD commodities has the exact same lights for 19.99 a piece. I think it was 6 dollars for shipping so that make the total for two lamps 46 dollars.
I'm 99.9% positive that these are the same lamps sold by LTD/ABC Distributing for $19.95 each! It's even the same stock picture (I get catalogs from ABC and have been watching these for some time)! While looking for a better deal, I found these on Amazon for 4 times as much! It looks like I better go ahead and order from my catalog!
These lamps are fantastic in our bedroom. We used them for each side of the bed just like the picture shows. However, we bought them from LTD Commodities and they are only $19.99ea there, so I would suggest buying them there. Same exact thing but saving $20-$30 bucks!
Love the lamps. The shades were too small and had to improvise to use a larger shade.
I like the appearance of the lamps and they work well. I thought they would have been better made but over all I am pleasedwith them.
The hardware was cheaply made. One of the lamps didn't even work. They certainly are not worth the price; they aren't even worth half the price I unfortunately paid.
Relatively easy to put together. They came with shades so for the price, they worked for me. They were fast shipped and arrived safely. I would have preferred 60 watt bulb capacity, so at 40 watts, I wouldn't consider these reading lamps.
They lamps are perfect for the location I needed them for. They were somewhat cumbersome to put together - no written instruction just pictures, and not very good ones. Also, the lamp shades look white in the picture, but they are definitely off-white. The other odd thing is the on-off switch is  way down by the floor,, so not a easy thing over a nightstand. You have to get out of bed to turn it off. We plan to change out the switch.
These lamps are ALMOST exactly as described, but the shades are not a bleached white color. Instead, they are more of a natural linen color. Pretty light, but still definitely not WHITE. Also, do make sure you notice that the plate you attach to the wall is not level when you install them - it's the screws on either side that need to be level, so the base plate itself is at a little bit of an angle.
I can honestly say that I have never seen a cheaper made lamp in my life and I am 60 years old, so I have seen a lot of lamps :-)Also, mine did NOT arrive as a set......I received one lamp and a week later I received the second one!! !
Answer: yes