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: what is the different between your product andCeramic Double Undercounter Water Filter With Doulton Ultracarb Cartridge and Flouride Removal Cartridge
Document: Simply amazing water filter. We are very pleased with this investment. The water from the Doulton filter has zero particles floating in the water and it tastes great. Highly recommended.
Answer: no