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 got the licorice at a cheese shop in New York and by the time I got home it was all gone. So got on the computer and found and bought some. That's how much I liked it. I have not done the before and do not regret buying it. Yummmmmm.
Example Output: Positive

Example Input: Unfortunately, I somehow stumbled upon this product and, based on all the glowing reviews, bought a case.  Upon opening the first bag and eating a couple, I was disgusted by the taste.  Worst thing I've ever ordered from Amazon---and I've ordered a lot.  I don't think the nutritional values are all that great, either.
Example Output: Negative

Example Input: I gave these treats to my chihuahua mix and he developed renal failure.  I then found out the FDA had issued a warning about these treats causing renal failure.  I'm amazed Amazon is still selling them.  My dog just spent 2 days getting IV fluids at the vets and may still not survive.  Yes, he absolutely loved these treats.  But please, at the very least, read about the warnings and what's happened to other animals before thinking about giving them to your pet.
Example Output:
Negative