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:
My cats are indoor, but I keep the windows and doors open, so fleas do have the ability to get in the house. One of my cats was starting to show symptoms of having fleas, and I opted to try this vs a visit to the vet to tell me he has fleas. Did some research, and gave this a try. I'm still on the first application, but flea issue has subsided. Also, not as smelly or greasy as other flea medicines.

Ex Output:
positive


Ex Input:
I heard about this coffee from a friend. I'm typically a fan of instant coffee because of how quick and simple it is to make - I don't take the time to brew the good stuff. Now I don't have to compromise. This stuff tastes high quality and has robust flavor, and takes no time at all. I'm sold.

Ex Output:

positive