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: This book, was far too long, and was not at all appealing. The length of the book, bored me to tears, and was too hard for people unfamiliar with his work (i am though somewhat familiar but still his theories made no sense to me and lacked relevance in my life). The book went into painstaking great detail describing dreams and interpretations. His theories and interpretations were intriguing, and informative, but lacked any research to back up his theories.
Solution: Negative