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.

Input: Consider 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.

Output: positive

Input: Consider Input: I bought the 3 pack and had no issue with the first 2. Went to use the third and it is NOT the same and didn't seal off the water. Waste of money. Only OEM for me from now on

Output: negative

Input: Consider Input: I heard an author interview and immediately bought on kindle. Now I will have to purchase again as I like to have hard copies of the best reads available to pick up and enjoy the old fashioned way. The only disappointment was that I covered 440 pages too quickly.
Output: positive