In this task, 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 thing does not tell you which app to download. I turned it on in range of WiFi and it would not connect regardless of which of the 3 apps I used. Thought that buying a cheap product was the way to go... you get what you pay for. In an age of cheap technology, it is astonishing that it comes with so little information. I am a reasonably tech savvy individual, and the fact that I can’t figure it out speaks to the low quality of the product. DO NOT BUY!
Example Output: negative

Example Input: I really like Pippa's writing. This sci-fi slash fantasy combination has me hooked. Cannot wait til the third book is released. Plot keeps you guessing about what challenge will come next, and how will the character grow with it. Please keep this series coming...quickly preferred. ;-)
Example Output: positive

Example Input: Lid melted!!! I have several calphalon items. Some I’ve had for years. This is the second time I’ve had a lid melt or warp or something to the point of not fitting the pot. I’m looking for a different brand now. These are too expensive for this to have happened twice now. I never contacted calphalon about this problem. I have bought this brand for other family members (full sets for weddings) and no real wow value. Not what they used to be I guess.
Example Output:
negative