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: good day, the stones are glass or plastic? thanks for your reply
Document: It's a pretty light, very unique , the crystals are plastic so it don't reflect the light too great, and I hv to Agee with everyone and their electrical issues, my nails got damages while installing the crystal beads however it was more or less easy to install. I am pleased , good light for the price
Thanks to the reviewers who warned me!
Alot smaller than it appears in photo. I did,nt recieve it on time , also it took alot of time to put these tiny dime size glass looking pieces together. Very dissapointed.
The beads look like cut glass and are very sparkly. I was afraid after one review I read that this would be a dull or cheap looking crystal/s  but they are very clear and look like cut glass. I think everyone that looks at it will think it cost more than what I paid. I really am happy with my purchase!
Just beautiful. Only bad thing is they wrap this in plastic and it was an absolute nightmare to remove. I finally put the parts in freezer to get the wrap off easier.
For the price, this was a great fixture. Definitely a challenge to assemble, but looks good once mounted. Came with extra crystals & five bulbs.
Buyers do not be fooled by the beautiful fixture you see in this picture... Once you see the box you will know that your money has been wasted on something you eyes was tricked by.. The light is very small and the plastic does not come off the parts. You will be upset and stuck with setting you are not going to put in your house... Total trash product.. The picture is a straight lie
No Bulbs for the hanging light. 5 lights in a bix took forever to put together. You Better have good eye sight and finger nails or you'll be in atrouble.
The crystals are plastic and clearly don't reflect light as well. I have a small eat in kitchen, and this provides a nice, soft light to eat under, which i prefer to a blaring lamp on my food. It is a nice addition to our kitchen. You do have to attach 80 strands of crystals, and the edges are sharp so BE CAREFUL! I cut myself twice. All in all, we really like it.
Simply a great value looks great and elegant would recommend this to anyone who wants to add a touch of class or elegance in a bedroom or halway, easy to install well built good quality.
Answer: no