Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Example: I've read this book with much expectation, it was very boring all through out the book
Example solution: Negative
Example explanation: Review writer does not like the book because it was boring, therefore it is a negative review.

Problem: Man Kzin Wars IX has four stories. The lead story by Poul Anderson is OLD, a repeat from another in the series. However, neither the Amazon entry nor the book itself make note of this; the publisher's dishonesty here is a real shame. The other three stories vary in quality, but at least two are good enough for this to be worthwhile in paperback next year.The one star rating reflects my poor opinion of repeated material with no warning. It probably would rate 3 stars otherwise. BTW, I am an old Niven fan, have read all his SF multiple times, and have read all of the Man-Kzin series.Amazon's automated machinery, or a hurried employee, has mixed in a bunch of reviews here that apply to other books in the series. It's too bad, but I've seem them mix up numbered series before. (See World Radio TV Handbook which is an annual series; they were selling the 2000 edition at a small discount to those who bought the 2002 edition!)
Solution: Negative