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: Are the crystals made of real glass or plastic?
Document: This lamp is exactly what I was looking for. It is a beautiful addition to my living room. It had one broken plastic piece, but not seriously broken. No one will ever notice.
we recieved this lamp in a box that look like it went through a war, however, all the parts and pieces where there and not damaged, it puts together with ease, 5 mins, and works awesome! in person its even better then the pictures.....
The shipment was sent fast and was packaged well. This floor lamp is gorgeous and it goes so well with the other furniture in my living room. The base is very sturdy which keeps the lamp straight and prevents it from tilting. The "crystal" pieces sparkle beautifully and creates a star like shadow affect on the ceiling. You won't be sorry for purchasing this product!! !
So let's hope it stays that way, otherwise it might look a little weird.two- the bulbs that comes with it are low watts and the light was very dim, but we bought higher watt bulbs and now it's brighter than ever and much more beautiful! !Overall, great lamp and we love it! !
Nice pretty looking floor lamp has improved the look of my living-room. So far there's been no problems with it.
Lesson learned - do not order something on line that is too heavy to return! I expect Amazon to properly vet their products offered for sale on their site. This must be some flim-flam company that escaped the scrutiny I expect of Amazon. Do not order this lamp on line as there is no way you can be sure it will arrive without damage and you will be hard pressed to find a way to return it.
Lamp is beautiful and we are very happy with the purchase!! It's about 7 ft. tall, but even with our low ceiling, the lamp fits perfectly. It fits in with the rest of the furniture and adds that elegance I feel was lacking in our formal living room.
I love this lamp. It is very tall so it doesn't get in the way of my chair. The switch is a dimmer which I am very happy with - bright for reading, dim for TV watching. The base is VERY heavy making the lamp really stable. Highly recommend!
I found one of these in the bin a few years back. It's previous owner destroyed all the crystal shades, so I retro-fitted it with four 2ft socket extenders, and LED lighting for my youtube theremin video stage. Just look me up on youtube under Thomas Grillo, and theremin.
I actually do not hate the lamp. I hate that I spent this much for something that is broken...one arch has no lamp fixture as the entire bulb/shade piece was shattered during shipping. I received a return receipt from Amazon but see no way to send it back. I cannot find a box big enough or long enough to return it in and it is really too heavy to take it to the post office. The company that manufactures this lamp needs to properly pack it for shipping.
Answer: no