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

Example Input: This book contains such advise as writing down personal affirmations which you will repeat to yourself at the beginning of each day:I am calm, prepared, and entertaining.I am fit and beautiful.I am humble, patient, and compassionate.I am enough, just the way I am.If this kind of advise is your cup of tea, then this is your kind of book.
Example Output: Negative

Example Input: First of all, let me say that I am a huge Wes fan! Not only is he one of my favorite guitarists, but one of my favorite composers as well. Everything Wes played was genius, including all the music on this CD. However, this release is not worth buying.This CD follows in the long tradition of Wes bootlegs of the March 27, 1965 concert in Paris. The songs are mistitled, the sound quality is poor; the personal are not listed, the date is not listed, the venue is not listed, and the booklet is non-informative. To make matters worse the song order has been rearranged to an awful order!If you are interested in obtaining a good version of this concert buy "Quintessential Wes" by Varese Records.
Example Output: Negative

Example Input: The authors seem unaware of the fact that theory guides our understanding. There are no "objective" facts, yet the authors present all their findings as such with almost no reasoning attached. This is both arrogant and ignorant. The authors display no grasp of theoretical advances in Accounting and I recommend getting a book that has a better exposition of principles as more than practice
Example Output:
Negative