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 have been giving these chews to my Mini-Pincher and Mini-Dauchand for the past 3 years to help support their joints and hips. The last batch I bought is darker in color to the point of almost being burnt and smells a lot more. It made my Mini-Pincher sick to the point of vomiting and liquid stools. I am going to shop for a better product that is made here in the US . . . I have been looking at GNC products for Dogs and that is probably the route I will take.
Example Output: Negative

Example Input: Although it sounded delicious, I was very disappointed in this coffee. The coffee has a strange, chemical aftertaste ... cup after cup, not just once. Even when it brews, it creates a chemical sort of aroma. In fact, because our single-serve pod coffee brewer was new, I started thinking the problem was the brewer. We assumed it was a left-over manufacturing plastic or metal aftertaste coming through in the water. I even e-mailed the coffee machine maker (Bunn) to see how to remove the aftertaste. Imagine our surprise when a month later we opened a new pack of pods (regular Colombian, not flavored) and were delighted that our machine makes great coffee. When we made a cup of the Senseo Vanilla again -- back came the off-taste and aroma. Perhaps it's the "artificial flavors" used? Be forewarned!
Example Output: Negative

Example Input: The crab meat layer on top is about a 1/4" (I'm being generous in my measurement)w/ the rest being tuna and a substantial share of broth. Of course my cats loved it and each devoured a whole can. I felt it was quite overpriced for tuna and will not purchase again. I think it's much more cost-effective to buy a can of Phillip's crab meat from the grocery store so my cats and I can both enjoy it.
Example Output:
Negative