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: This was the first time I tried purchasing a food product over the internet, and as feared I was sent something other than what was pictured.  This package contains Chia Seed POWDER, which I assume is ground up seed (or the remainder from packaging whole seeds) that you have no way of identifying whether or not has additional filler.  Not going to bother returning a $7 product, but just disappointed when the page advertises whole seeds.
Example Output: Negative

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: I received these March 24, 2011 and it was not what is pictured. I got sweet pops. If I had wanted this kind I would have ordered them. In the box there was 19 cherry, 12 stawberry, 5 orange, 11 grape and 1 blue razz berry...some assortment of flavors Huh. Very disappointed.
Example Output:
Negative