Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: Can it be flush mounted for an 8 ft ceiling?
Document: This ceiling fan is a bad design.The blades send out very little air, you can't feel a thing standing directly under fanit looks great but doesn't work as a fan
This fan looks exceptional. Most stretched fabric blade fans  fans span 48 to 52 inches but this one is only 40 which suits the small cathedral ceiling in my enclosed porch. Be mindful if you need an extension rod for your sloped ceiling, the ones at Lowes, Home Depot, Menards etc. won't fit. Requires 3/4 o.d. tube... home centers tubes are 3/4 i.d. and 1 inch o.d.
Answer: no