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:
I thought the impeller was broken so I purchased a new one and unfortunately learned that it is the filter itself that is no longer able to pump water. I bought this a month ago. My turtles are not happy.

Ex Output:
negative


Ex Input:
the reason why i bought this cable was because my parents needed one to reach across their room. unfortunately, it worked for only a week before i stopped charging anything. i promptly returned it.

Ex Output:
negative


Ex Input:
My favorite eyebrow pencil. I forgot to wash it off at night. When I woke up, I was shocked when I looked in the mirror. After the night, my eyebrows still look crisp and vivid. After trial and error, I got the perfect stroke.

Ex Output:

positive