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: What is the weight of this lamp?
Document: I love this lamp. It's practical and it's a perfect size.
Great lamp so far so good. It's really cool how you just tap it to make the light brighter.
This is a fine well-made lamp with a nice heft to it that works as advertisedand looks in real life just like it does on the web page.
Perfect size for next to a chair. My Mom is handicapped and unable to twist conventional light switches. This lamp worked perfectly for her.
The illumination is just the right amount for my bedroom. The touch response is very responsive. Each day I have this lamp in my bedroom, I love it even more. It really grows on you.
great deal and good looking lamp.touch sensor works good (2 levels).only 4 stars because lamp gets hot  - not very energy efficient.
Nice lamp; however, it is not quite bright enough to read by. One of the bulbs burned out after using it for a couple of weeks. Was able to purchase a replacement bulb at the local home improvement store.
Arrived quickly and was easy to put together. Have got so used to these that I forget that not all lamps are touch sensitive. Was worried that my cats would turn on and off when they jump on end tables but have not had one accidental lighting. Very well made and classy looking. Not too big and does not take up much table space.Wish they made it in a standing room lamp size!! !
These lamps are beautiful, unique, and well built. The bases are very heavy and very sturdy. I love the touch feature so much I often just touch the lamps all over just to confirm that it works as well as it really does. I think the criticisms in other reviews regarding the lack of brightness are very incorrect. On the highest setting, these lamps are as bright as you would want a bedside or desktop lamp to be.
Bought this lamp as a replacement for a broken touch lamp that I had for a few years. I've had this lamp for about 6 months now, using it everyday. So far so good. The touch control seems to work pretty well. The only thing that I didn't like so much was that it comes with special halogen bulbs which get pretty hot. Also, I'm not sure how I will replace them when they finally go, as they have a special type of spade socket.
Answer: yes