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: Zen brews up to an golden amber liquor. The aroma is sweet spearmint. The blending of this tea is excellent--spearmint could be overpowering but they use just the right amount of it. Slightly sweet spearmint is the primary flavor, then you taste a hint of lemon. The green tea provides an herbal base for these two flavors that makes the intial impression of zesty spearmint and lemon modulate into a substantial potion. Very nice and satisfying with a clean spearmint aftertaste.  Remember that this tea does have caffeine--however, it does not say how much on the box. A good estimate might be 30 mg--compared to 90mg for the average cup of coffee. Make sure you time how long you brew this tea because if you brew too long it becomes bitter. Four minutes is ample.
Example Output: Positive

Example Input: WARNING !!!!!  they don't even make there own food it is licensed out to another company if you look on the back of the bag it doesn't even list who it is made by it only says guaranteed by canidae and when i asked who it was made by i was  1 either completely ignored  2 given a huge run around only thing i ever got was a state it was made in they wouldn't even tell me the company  this is dangerous because this is how all the pet food recalls happened a few years ago by out sourcing manufacturing
Example Output: Negative

Example Input: I really liked these chips as did my entire family. I wish you could pick and choose the flavors in the variety pack. I would love to try the sweet potato and chili lime and leave the salt and pepper behind.
Example Output:
Positive