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

Example Input: The original books contained haunting, even downright frightening illustrations that still disturb me to this day. They made these stories scary. They were original, artistic, beautiful and downright horrifying, and have been replaced by bland, boring, and shamefully dull. If you want something that will scare you, find a copy of this book with the original artwork by Stephen Gammel.
Example Output: Negative

Example Input: What a pleasure to read such a high-quality book... It introduces each of the islands in a colorful and vivid way. The book includes many pictures, and provides a fine insight into the culture and character of the islands and touches on history, people, travel, activities, sights, nature, and a lot more.However, if you are looking for a book with accurate travel information, e.g. hotels, restaurants, prices/dates, how to get there, etc., this book is on the weaker side. Use it together with the Frommer's Caribbean guide for a combination that is hard to beat. Despite this weakness, it's still a five star on my bookshelf.
Example Output: Positive

Example Input: This book preaches a very right wing kind of economics. If you can imagine one of Rush Limbaugh's readers or helpers writing a primer on economics, then this is it. Keep government small etc. The author most likely was an Austrian school follower. As it is avaiable free on Limewire, maybe get a free copy on the Net or browse it in your local library. No need to buy unless you want to flesh out (sic) the ideas of Mr Limbaugh et al. The book relentlessly hammers home the ideas that government should be amall, self interest drives the economy forward and that state intervention is bad.
Example Output:
Negative