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 this UL or CSA approved?
Document: I live in Florida, so the weather is, general speaking. HOT!So, I have a plan to replace my own Big Water heater, whit this electric shower, that I saw in Nicaragua country hotel.I will save  on electric bills and have hot water in my shower; any way, I don't need hot water in the kitchen!
Answer: no