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

Example Input: I used this program for my science class. My students loved it! They learned some interesting facts, saw damage from earthquakes we talked about in class and never once did I hear that it was boring! Can't beat that!
Example Output: Positive

Example Input: It is curious that one one the more significant achievements of "Pastor" Charles Taze Russell is omitted above. That fact is that he was the primary founder of the Watchtower Bible and Tract Society, and the religion now known as "Jehovah's Witnesses." No small amount of his theology is controversial in the body of the Church as a whole, as it would be (for different reasons, perhaps) amongst Jehovah's Witnesses.
Example Output: Negative

Example Input: Im a huge fan of Transformers since I can recall, I even have to tattoos. And the movie in 3D is awesome, I just bought a LG 47LW6500 and a 3D BD player...what else can I say
Example Output:
Positive