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: We have been giving our 100 pound shepherd/lab/collie/husky mix Hip Action since he was a pup. Our vet believes this is realy going to help him prevent all the hip problems that shepherd's usually have. Eventhough I cannot buy it locally, I make sure to buy it on line so my boy will remain healthy and happy!
Example Output: Negative

Example Input: I have been enjoying this product for some time.  I buy it at Wegmans grocery store, I believe the cost is under $4.00 a box.  If you like black licorice you will love this product.
Example Output: Positive

Example Input: Tart, bitter aftertaste, horrible diet rootbeer!  It makes me feel bad drinking this and I probably won't ever buy this brand name again.
Example Output:
Negative