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.

Ex Input:
Unfortunately they didn't work for me at all for they doesn't work with soft tissue. My skin tissue is too soft and it won't stay in place. So be careful unfortunately it won't work for everyone. The firmer your skin is the better it may work.

Ex Output:
negative

Ex Input:
I've had this display port cable since January 2019, about six months into using it my screen kept turning black out of nowhere. So I had to keep plugging it into another display port on my GPU to get the screen to register. I continued to use it like this for another several months until it kept happening more frequently, now I just switched back to HDMI and have not had any issues for a week. This chord looks pretty but is defective.

Ex Output:
negative

Ex Input:
Bought this to put underneath my bird's playground. It makes cleaning up after the bird so super easy. Even though the mat is on top of carpet, it still functions. Good design, solid materials, overall a wonderful buy.

Ex Output:
positive