Detailed Instructions: Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
See one example below:
Problem: I've read this book with much expectation, it was very boring all through out the book
Solution: Negative
Explanation: Review writer does not like the book because it was boring, therefore it is a negative review.

Problem: I have read most of this series with great delight. However, Pratchett finally let me down.It plods along, in no particular hurry to let the reader move on to better things.The humor -- what little there is of it -- is forced. It has the feel of sophomore philosophy majors sitting 'round the Quad on a Saturday night, dateless and full of mockery. It is kind of sad.Far from one of his best. PYRAMIDS, any of the series having to do with the Watch or the wondrous three witches -- you will enjoy those far more.This one droops as limply as an Ayn Rand novel.
Solution:
Negative