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: This control works with the engine ALEKOÂ® Sliding Gate Opener AR2700 Operator for Sliding Gates up to 50-feet Long and 2700-pounds by ALEKO?
Document: The gate opener operator for sliding gates  is not  good product, because the washer or zipper of the motor;  is plastic; and with  the weight of the door  is broken, in 2 or 3 months
This gate opener is beyond my expectations. .I have a heavy gate with lots of traffic and it works great.The motor cover was cracked but I expect a hasty replacement.
I love it , very small, easy to install and program , very quiet.Suggestion, i would like  to see a safety sensor added to the system when closing if any thing come between to stop the gate from closing and hit the object.
Great product, easy install and setup. The only reason why I gave it 4 stars instead of 5 is that in the picture of the ad shows a metal pinion and it comes with a heavyduty plastic one. But still no complaints, everything run very smoothly. I have a 18ft gate and it opens and closes farely quickly and smoothly. Great motor, I recomend this motor to anyone.
THE OPERATOR APPEARS TO WORK VERY WELL. THE GEAR TEETH  THAT ENGAGES THE RACK TEETH KEEP SHEARING OFF. I HAVE PUT ON TWO  GEARS THAT I PURCHASED AND NOW ON MY THIRD GEAR. WE HAVE ALIGNED THE TRACK, CHANGED THE SUPPORTS, CHANGED THE ROLLER SUPPORTS, DON'T KNOW WHAT TO DO. I'M THINKING OF PUTTING ON A METAL GEAR TO KEEP IT FROM SHEARING TEETH. I CANNOT DETECT ANY BIND IN THE OPERATION. WHEN WE ARE WATCHING THE OPERATION, EVERYTHING APPEARS SMOOTH.
THE GATE IS ONLY 22 FEET LONG.
Answer: no