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: Day #1 and one tire broke! I would at least like to know if there is a possibility of ordering spare ones. All the rest is fine, but really I can't understand that it's sold as heavy duty and it breaks on the first ride, just carrying beach stuff

Answer: negative

Question: I like these stair for my chi, he is only 5 pounds and this stair is easy for him to climb. plus they can easily be carried to my motorhome so he can get on the bed.

Answer: positive

Question: I've tried a few different whitening products which are not only quite pricey but don't actually give me any results and on top of that are full of chemicals; after only a week of using this product I've definitely noticed my teeth to be whiter, not that much but for the price and for the time it is worth trying it. I would recommend it.

Answer:
positive