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 was excited to see that Amazon is selling 100% Kopi Luwak. However, these beans were a huge disappointment because they had no aroma and flavor at all. I'm guessing that they sent stale beans because there was no roast date printed on the bag.
Example Output: Negative

Example Input: I used to buy these as healthy snacks at my office cafeteria and consider it better than a bag of potato chips.  These taste very crunchy and tasty.  Given the kind of unethical food stories we read about China - we need to see some kind of assurance and facts on the processes that the manufacturer is following to make these.  You just cannot import food stuff and sell in the US as gourmet snack food - there needs to be data backing this.  Few example of Chinese food (yuk ...):  (1) Melamine(kind of platic) in baby food and milk (so wide spread that 80% of milk in China contained this plastic in 2008)  (2) Honey contaminated with ciprofloxacin (antibiotic) - because of which it was banned in the US  (3) Soy Sauce made from Human hair (not joking google it if you want)  (4) Spurious drugs exported to African countries.  Need some good facts and quality controls from the Manufacturers that the chinese producers are complying with some good quality controls.
Example Output: Negative

Example Input: I purchased 3 containers of this cereal all having expiration dates in 2012.  The first container I opened seemed fine (at least I hope it is! I fed it to my 5 month old!) The cereal color was a pale whitish-tan and there was relatively no odor to it.  Baby likes it so I am happy.  The second container I opened (again, same packaging, and good expiration date) had a totally different color - this time it was brownish-green. However, the worst part was the rancid smell.  It smells like rancid oil.  I opened the third container - same brownish-green color and and same rancid smell.  Very unhappy with this product.  I have contacted the company, but have had no reply yet.  I would not recommend feeding this to your baby.
Example Output:
Negative