instruction:
In this task, You are given a review of Amazon's food products. Your task is to divide them into two classes: negative or positive, depending on the content of the review.
question:
When the ache/pain in my upper back won't stop, I always turn to this product. It takes away the pain almost immediately. It is adjustable and comfortable to wear. I love it!!
answer:
positive


question:
I'm so glad I stumbled across this product, because it has seriously improved my WiFi speed. Using it on an older laptop , I noticed that WiFi speed was faster than the built-in WiFi . I later tried it on an older desktop and it was very fast as well. An excellent product!
answer:
positive


question:
Pretty sure this is a fake. It fits weird, like my arch doesn’t line up at all. The stitching is off as well. I purchased the size 7 and picked up the 7.5 from Nordstrom, what a change. These just look different! Really disappointed, and wish I could get my money back.
answer:

negative