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.
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Question: Well I received this product Monday, it's friday and won't turn on anymore. It was wonderful for 4 days, but like I didn't spend 30-40 bucks on this for it to stop working. I'd like my money back, considering my old heating pad lasted 3 years.

Answer: negative

Question: I have a smallish black dog that disappears into shadows and night an this collar is perfect to help keep an eye on him. He is so small I was able to get two equal lengths out of the collar portion and I love that it is rechargeable.

Answer: positive

Question: I really like this outfit. Following the size pattern , I ordered an extra large and it was very big. I reordered by taking the advice of some of the reviewers and got a medium. This outfits runs big.So this time I ordered another color,pink in medium

Answer:
positive