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: I have an otherwise healthy and active 1 year old Rottweiler. I switched her from Blue Buffalo to Canidae, as it came highly recommended by the holistic pet store I frequent (they are going to be the next to get an earful from me!!!). Shortly after, I noticed her stool became loose, which is common when you change a dog's diet (I mixed the new food with the old for a week, gradually increasing the amount of the new). I figured it would get better after a few days. In fact, it became increasingly worse to the point where spots of blood where showing up in her stool. I took her to the vet thinking at this point she must have picked up a parasite. The test came back negative. My vet thought it must have been something she ate and recommended I feed her chicken and rice for a week to even her out. I did this and the problem was solved. After a week I put her back on her regular food- Canidae- and the problem she was having before began to return, albeit gradually. We have now started to see spots of blood again. This convinced me it was not just "something she picked up," but the dog food itself. Now I have learned there is actually a CLASS ACTION SUIT against this dog food maker for the exact problem I described- in some cases people's dogs even died. I will NEVER purchase this brand again and am switching my dog immediately back to Blue Buffalo- this time no mixing!!

Output: Negative

Input: Consider Input: I was quite skeptical about stevia at first, but tried it with another brand and thought there wasn't much difference in taste and I felt better about using a more natural product than the other artificial sweeteners out there. I then started looking at getting a bulk container and happened upon this product. I now have purchased this same product 4 times and am quite pleased. The product is a bit more concentrated and we are using less of the product in our drinks and cooking than other competitors. The deliveries are always quick and we have not had any issues at all with the product or packaging.

Output: Positive

Input: Consider Input: My boxer enjoyed the treat, though after eating it she drank a bowl full of water. Maybe it had a lot of sodium. The real surprise came the next day though when she suffered a loss of bowel control; she's never went #2 in the house since we got her over a year ago. Afterwards, we took her on a hike and she couldn't seem to stop "going", had 7 bowel movements on a 2 mile hike; and they were very watery. She's still not acting back to her normal self. I guess it makes sense; I wouldn't trust a butcher from a group of people whom I know to be cannibals, why should I trust dog treats made in countries that eat dogs?
Output: Negative