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: Is the LED bulb included?
Document: These sconces are just plain beautiful. Simple, yet sophisticated and elegant! The finish is pretty much similar to brushed stainless (which everything else is in the bathroom) and can't be differentiated from it. Quality product.
I love the way this unit apples the light across a full foot of length. Nice quality. Well made. We swap the chrome one for a black one and the company did it with zero hassle. Thank
Answer: no