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: It was time to order cat food again and I thought I'd give the Natural Balance line a try. My cat loves fish, so I figured that the Tuna and Shrimp Recipe would be a big hit. Nope. Both cats in our house gave it two thumbs down votes - neither of them would touch it. What finicky little critters they can be sometimes [sigh].
Example Output: Negative

Example Input: Please ignore the one-star comments, if you check the bag the main ingredient IS in fact whole grain brown rice and the second is rice flower. With anything that is gluten free you have to add another "binder" which is where the corn flour comes in. For someone who has celiac disease and cannot have Sunchips, because they contain wheat (a key binder to any chip, cookie or cereal) this is an excellent product. My spouse and I buy these a lot because they are gluten free and absolutely delicious!
Example Output: Positive

Example Input: My dog refused to eat any of these. I had to give them away. Beware if your dog is picky.
Example Output:
Negative