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: I baught this kind of cereal from Wholefood. Since this was the first time I tried this brand, I picked 3 kinds: multi-grain, oatmeal and brown rice. Oatmeal was all right, but the other two smelled like they were already stale(the expiration day is May 2013), and they tasted bad too and sticked on my throat when I tried them. My baby cried and refused to eat them. The customer service of Wholefood was very nice and refunded me. I don't think I will buy this brand of cereal again.
Example Output: Negative

Example Input: Please think twice about purchasing this product, especially if you have a small-breed dog. I was lured by the cute, gimmicky labeling and sold by the ingredient list, but I twice fed Merrick canned food to both of my dogs, and BOTH times, BOTH dogs were diagnosed with pancreatitis -- an illness which is dangerous,  extremely painful to the animal, and which requires hospitalization. I'm not sure if the fat content in those particular cans was high, or if Merrick uses an ingredient/additive that somehow sickened both of my (unrelated) dogs, but this food made them very ill. After their second hospitalization for pancreatitis, I spoke with other folks who had stopped feeding Merrick to their small-breed dogs for the same reason -- the food caused vomiting, diarrhea, and lethargy in their pets.
Example Output: Negative

Example Input: My girlfriend and I bought some of this at stater bros for 4 or 5 bucks. Worth every penny. We use this on sandwiches instead of mayo. It is the best stuff. It's not healthy at all, in fact it is really bad for you, so keep that in mind.
Example Output:
Positive