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: I use my mobile phone constantly throughout the day for work and need headphones to so I can have both hands free. These headphones are amazing, comfortable, and a great buy.

Answer: positive

Question: 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.

Answer: negative

Question: My 6 yr old daughter has one that her school provided for her to help prevent her from chewing her clothing and that one has lasted her several weeks so far. I purchased these ones for her and she has had each one completely chewed up within a day. These are very poor quality. Amazon issued a full refund and I purchased a quality set from another supplier.

Answer:
negative