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: Nice critic about inquisition times combined with a great introduction to small gods concept for those not familiar with it. Makes you think about faith while it makes you laugh about everything. If I had not read better Pratchett's books, I would have rated this with a five
Example Output: Positive

Example Input: Great product for my visiting 3 1/2 year old grand daughter! Stays inflated well.Fair price! Easy to inflate and deflate!
Example Output:
Negative