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

Example Input: The book was boring and to far fetched to be entertaining. The characters were not believable and left me with wanting to many unanswered questions. The author took to many liberties with facts. All in all, I just didn't care for the book, skipped thru pages to end it so I could go on to more enjoyable reading. Amazon offers so many options and choices that I'm bound to pick a lemon once in awhile. I always read the brief description of the book before I buy but in this book that wasn't enough.
Example Output: Negative

Example Input: A progammable thermostat that you can actually set differently for each of the seven days - perfect for people with non traditional schedules. And the 'off the wall' setting capability makes it very convenient to set up.
Example Output: Positive

Example Input: This bed was purchased as a spare bed for short time visitors as we are limited in space in our Park Model RV. We needed someting that didn't take up much room to store and yet was comfortable enough so that as person could get a decent nights sleep on it. After reading all the reviews I could find, I deduced that some of these beds were faulty (like all things) and that they tended to deflate overnight, but, that most were fine. Our bed has met all of our expectations and is fine, comfortable and holds the air. I would highly recommend this product!!
Example Output:
Positive