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: Our cocker spaniel is now nearly 10 years old, and the solid gold food I'd been feeding him suddenly changed its formulation over a year ago(with no notice on the packaging), and he became subject to unexplained stomach upsets.  After the contaminated food scare even tho Solid Gold was not recalled, I decided to switch, and this formulation is perfect for him to not gain too much weight.  Newman's own is a brand I totally trust and have bought snacks for my human baby as well for years.  After a year on this food, my dog is doing fine, but I do notice a need to supplement with fish oil for a healthier coat.  That may be age related as well.  But the stomach upsets have stopped.  And I feel better knowing I am not exposing him to additional pesticides and hormones by going mostly organic with this formula.
Example Output: Positive

Example Input: Watch out, we had a couple of bad tasting bags from a 40-count box from costco recently.  When opening up the third, many of the popcorn kernels inside were odd looking, inconsistent.  It is too bad, so now we are going to air popped popcorn, after using Orville's  bags nearly daily for a few years.  Eden's organic popcorn was OK so far, but harder to find.  Now will try Bob's (red mill?) popcorn kernels.  Hoping none of these are of the genetically modified type of corn.
Example Output: Negative

Example Input: One reviewer writes that these are Oreo crackers without the creme--and they are right! These thin Oreo crisp wafer type cookies by Nabisco are easy to pack for when you're on the run and just need a quick sugar infusion. They also make for snacking anytime of the day--or night--and they give you that great Oreo taste without actually using creme as an ingredient.  These crackers are cholesterol free and trans fat free--hooray!  There are only 100 calories in a serving and a serving contains only two grams of fat. They are baked crackers which helps make them healthier than other snacking choices including greasy French fries. These crackers somehow manage to give you the full Oreo taste experience while omitting the creme and a fair amount of the calories, too. Excellent!  These Oreo thin crisps come in six smaller packets which will be inside the box you buy. This makes them even more portable for both children and adults. Another advantage of the cookies coming in smaller packages inside the box is that you know that each packet has been pre-measured to contain only 100 calories. This way you can't accidentally eat too many and take in more calories than you wanted to have.  I notice that these crackers are made with cocoa. Please consult your doctor if you have any concerns about caffeine. Chocolate and cocoa could contain too much caffeine for you if you are sensitive to that.  I recommend these crackers for persons on the go who want a quick snack. They should provide you with a sugar boost for quick energy. They make for a healthier alternative to other snack foods loaded with fat and/or cholesterol.  Buy some and enjoy them today!  SMILES
Example Output:
Positive