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: One reviewer indicated that the fan could use either 4 or 5 blades.  Is this choice given in the instructions that come with the fan?
Document: Real cast iron housing, 4 or 5 fan blade design. We but ours together using just the classic four blade design and the fan is perfectly balanced right out of the box. The real wood veneers on the fan blades look great. Adding lubrication oil is super easy and only has to be done every few years.
I've installed two of these fans in my home, one in the living room and one in the master bedroom. Both have been in use for over 5 years and work flawlessly.If you've been around other fans, these are no comparison at all. The Hunter Classic Original is large, slow, and move LOTS of air, but is almost silent.
Sure, I would absoltely agree that these cast iron fans are the workhorse's of all ceiling fans, but I have never owned one. However, beware, for these fans are very heavy at 43.5 pounds. The blades look much thicker in person than in the generic photographs of this fan and generate a lot of air. If you are looking for a very classic old fashioned ceiling fan in a stylish manner that everyone would like, this is the perfect fan to buy.
I have seven Original fans that are 28 years old that have never had a problem, not even reoiling.........These were all made in the USA. I purchased 2 more Original's 5 years ago that have been outside under a porch. They were not made in the USA. The blades are no longer made of pecan wood but have not had any problems. The fan I just purchased has been added to the porch. I do not expect any problems.
Hunter makes one, apparently, but I have found them hard to find. The CONTROLLER IS SPECIFIC TO THIS FAN. Use another controller and you find that the fan does not operate correctly at low and medium speeds, which means you must have the fan specific controller or use the pull chain to adjust speeds.
Although these fans are a bit pricy, they are high quality, reliable and well worth your purchase. I have purchased three of these for my current home after owning Hunter brand fans in my previous home that were going strong after 10 years with no issues. These fans are quiet, operate smoothly and installing isn't that difficult as long as you follow the instructions. These fans will provide a long time of use and Hunter stands behind their fans as well with their warranty.
The quietest running fan I have ever had. After purchasing one for the living room, I got another one for the bedroom. Am able to sleep with the fan running, something I could not do with the old fan.
We either have the installation down to a science, or Hunter makes it easy. It took us less than 1 hour to install the new one,and 1 hour to get the old one off the ceiling.We love Hunter Ceiling Fans! !
Pros:The Hunter Original is the finest fan I have ever owned. I installed five of them in my home in 1979 and have had to add oil to three of them after 20+ years of  use. Two of those fans are "on" almost 24/7. The "Original" is the only fan I would ever purchase. I also installed four of them in a second residence.
I have not had the new style blades to warp like the less expensive fan blades do.
Answer: yes