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:
I was skeptical that this would work to keep my hound dog quiet - but it works like a charm! Maybe because her nose is more sensitive?? We don't always put her bark collar on, but when we let her out at night when her barking would be more disturbing to neighbors, it works as described. Sometimes we only put the collar on and not activate it - that also works now that she associated the spray with the collar.
answer:
positive

question:
This watch looks nice and is very durable. It has a lot of good features. Not only tells you how many steps and miles you walked also records it on your phone how many calories you burn love it!
answer:
positive

question:
This unit had performed well for the few times I used it over the past year. I had this unit plugged in to an outlet in my barn and it started a fire. If we hadnt been there to witness it we would have lost the barn and all its contents. We were able to put out the fire with a fire extinguisher.
answer:
negative