Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Example Input: You aren't saving any being this adapter. I purchased this for a 12" G4 Powerbook. The power it supplies goes on and off constantly. This can't be good for the computer. It certainly doesn't charge it. Don't waste your money on this Macally adapter. Try to find an original Apple adapter if you can.
Example Output: Negative

Example Input: You make it in rock and you think you can do it all. This book proves you can't. It is a truly poor excuse for a collection of haiku and it is particularly offensive because there are those who will buy it thinking it the real thing. Do yourself a favor and buy Higginson. You can look at this in a few minutes in the bookstore. It might be good for advanced classes in "don't let this happen to you!"
Example Output: Negative

Example Input: Silly, stupid, boring. I had to read it for a project and I was about to faint. Thank God that it was short:) Do you still wanna read it? Then good luck! I hate to say this but belive me you will be sorry for it!
Example Output:
Negative