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: My dog will do anything for these treats. Buying a five pound bag lasts about a year and they are dry so they are easy to put in your pocket and they last forever.
Example Output: Positive

Example Input: For some reason my husband ordered a TON of this stuff for me for Christmas. We live in Chicago & it's cold so I didn't try it right away. I was craving something sweet so I finally made some tonight. It tastes like icy chocolate, & it's a bit chalky. To be honest it reminds me of the old powdered slimfast. I've got a whole canister and 5 packets of this stuff & I don't know what I'm going to do with it.
Example Output: Negative

Example Input: My one year old cat ate a few of these and seemed lethargic. Two weeks later I gave him a large helping of these and I thought he was going to die. He laid around and would not eat or move for two days. I will not feed him these again. Same thing happened to my parent's cat after eating the salmon variety.
Example Output:
Negative