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 have older mats that have a ribbed surface and work great. These have small stiff points and actually hurt to lean on or kneel on. I can imagine that they hurt my cats paws ad that is why they tend to jump over them when exiting the littler box.
Example Output: Negative

Example Input: I don't know if it was the case of chips we received or what, but everyone we allowed to sample the chips (in a buffet style setting) agreed that these were slightly on the salty side. One person jokingly stated that these would be terrific for melting ice and snow, due to the amount of salt in these.  We had ordered these with the expectations that these would be similar to the Lay's Kettle Mesquite Potato Chips, but these Kettle brands outback bbq chips are the exact opposite.  Sorry folks, we just had better expectations from these chips but they a little on the on the salty side.  We are still looking forward to Amazon finally getting the Lay's Kettle Mesquite Potato Chips in stock. These got a 2 star, because the bbq powder they had used on these were flavorful enough to be unique.
Example Output: Negative

Example Input: Great formula, our son is not getting stomach pains like with the regular Similac and he actually likes the taste.  The only thing is that it's way cheaper at Costco ($27.82 per 34oz + tax). Amazon is NOT willing to price match!!!
Example Output:
Positive