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.

Example Input: This was the best purchase that I could have made for my daughter. It was priced beautifully and my daughter can study without worrying about the price for her college books. Thanks so much!!
Example Output: Positive

Example Input: I had been buying these treats for my cavachon for the past two years. He loved them. The last batch was of noticeably lower quality...dry and crunchy rather than moist and chewy. I don't know if this is due to the shift in manufacturing from the US to China or coincidental. In any event, I will not be buying these any more and have switched to other treats. Note, Amazon would not let me return this item, and I am within the 30 day purchase period. I'm not pleased.
Example Output: Negative

Example Input: This stuff is pretty disgusting. I don't care if Madonna, Tom Cruise or whatever celebrity invested in the company and carries a container of it around for photo opps, it tastes bad. And as far as rehydrating better than water, umm, don't think so. It might replenish potassium, although, unless you are participating in the Olympics, you probably are not going to risk a potassium deficiency from physical activity.
Example Output:
Negative