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

Example Input: I could not give this book a full 5 starts. For whatever reason, the book seemed to "bog-down" and I just wanted it to end. I will continue to read the series, but this one was not my favorite.
Example Output: Positive

Example Input: Haven't had an opportunity to use them yet, but after examining them they appear to be a quality product , I'm sure they will be just fine and work as expected.
Example Output: Positive

Example Input: This is my second bottle of sheer freesia, I just love this fragrance, its a light delicate sent, beautiful, like a summer day.
Example Output:
Positive