Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: Is the 3 - wire copper or aluminum?
Document: this is a heavy well built extension cord....also not too expensive for the apparent good quality...of course whats on the inside is what counts and therefore judging this on power capabilities will be left trusting the manufacturer specs (are these copper wires ? )Up date 10-28-2012As stated above I was wondering about the inside contents as to whether this was copper wire.
This is a nice heavy duty cord-It was only $3.00 more for the #12 versas the #14 wire--when using a cord this long it is really importasnt to use the right size wire to prevent over heating and under powering your device
US Wire 65050 12/3 50-Foot SJTW Orange Heavy Duty Extension CordI found this to be a great value at this price and it appears to be well made and UL certified. Great to have on hand to use when I need to operate my new generator.
Finally! Someone put out a heavy, yet pliable, 3 wire 12ga. extension cord which will carry 12 amps at the end with precious little voltage loss!.t has a very heavy jacket over the three wires, so no worries about abrading the cord and causing a short; or overloading the cord with a heavy draw appliance attached to it.
Couple of hundred $$$ spent on a visit and I walk out with nothing made in my own country and it's a bummer.The "US Wire 65050 12/3 50-Foot SJTW Orange Heavy Duty Extension Cord" here is an Excellent product, great price and made in USA and looks like it will more than pass the test of time.
This cord and its 100' version work great for my Black & Decker lawn mower.Pros:Delivers the power.Flexible and easily coiled when done.Good weight.Reasonably priced.Cons:None yetUS Wire 65100 12/3 100-Foot SJTW Orange Heavy Duty Extension Cord
I needed/wanted a new heavy duty extension cord to replace a very old one that wants to overheat more and more after a hard life. This US Wire 12/3 cord is certainly heavy duty, and it is a great value. I don't use it with heavy duty appliances or tools often, but it's nice to have a cord on hand that can handle some voltage when I need it. I would recommend this cord.
I need a new power cord for my electric lawn mower, and the US Wire 65050 12/3 50-Foot SJTW Orange Heavy Duty Extension Cord does the job. It's well built and fairly flexible. The 12 Gauge, heavy duty wire handles my mower and trimmer without any issues. It also costs less than other &#34;heavy duty&#34; power cords. It does everything I ask, and is a good value. I recommend it.
This is a nice heavy duty extension cord. It could easily handle 10 amp loads. I purchased online since copper prices are going through the roof. It seems extension cords are getting fairly expensive in stores. This was cheaper than the big box stores around town.
This is truly a heavy duty cord, and they weren't kidding about the heavy -- this thing weighs a ton. It has a lot of copper, obviously. If you don't need the high amp capacity, say for extension lights or light power tools, you might consider a much cheaper 16 gauge model, I use this one solely for my electric mower, which draws a lot of amps.
Answer: yes