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

Example Input: This product requires a stereo player in which the balance is turned totally to the left. Most auto systems have that capability. However if you have Dolby or SurroundSound, it can be difficult (and maybe impossible) to play the cassette without hearing two recordings at the same time. Unfortunately neither the packaging nor the website will warn you of the problem. You therefore should think before buying. Once you have opened the packaging you may be unable to return the product.
Example Output: Negative

Example Input: I really like Christine Feehan. This book was very dissapointing. The plot had promise. Nicoletta was a sweet heroine. The prose were good, and the medival Italy setting was an interesting change of pace. However, the plot flows like molasses in January. I managed to get half way through before I through the book down and went back to the 'Dark' series.
Example Output: Negative

Example Input: This book was not the best. It was boring and the characters were underdeveloped. I liked the idea that Gillian WASN'T gorgeous, rich, and plain perfect, but in a snap she became the typical LJ Smith character. I love the idea of soulmates and everything, but I think these kids find their soulmates too easily, and how come everyone in LJ Smith books have to be SO perfect? Maybe if they were not so gorgeous--really how many gorgeous people are there in the world who are "perfect" on top of that? If you want to read LJ Smith, read the trilogies or even the other Night World books because this book reads like LJ Smith was getting desperate for a "new" idea.
Example Output:
Negative