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 tried to use these dried morels as a substitute for fresh morels in a chicken dish and they were lacking in flavor. Morels should perfume a dish and these mushrooms did nothing when rehydrated.
Example Output: Negative

Example Input: Yuck! Awful and since I expected beans instead of ground coffee, I'm even less impressed. I have a very good quality coffee maker, but this stuff stinks.
Example Output: Negative

Example Input: So disappointed with this frosting.  The first time I used this frosting I was disappointed, but a year has gone by and I thought that maybe I had gotten a bad container.  I really should have thought twice about buying it again, but I wanted to give Pillsbury the benefit of the doubt.  Boy was I wrong in doing that.  Both times that I used it, the frosting pretty much 'sagged' off of the cake!  My cakes were definitely cooled.  I had even put the latest one in the freezer to slice into layers.  After thawing it in the fridge, I began to ice it.  Sure enough after putting the frosting on it just started to slide off of the cake (again)!  This product needs to either be marketed as cupcake frosting, the recipe needs tweaked, or it needs to be pulled off of the shelves all together.  Shame on me for trying it a second time!
Example Output:
Negative