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

Let me give you an example: I've read this book with much expectation, it was very boring all through out the book
The answer to this example can be: Negative
Here is why: Review writer does not like the book because it was boring, therefore it is a negative review.

OK. solve this:
The Old Grey Whistle Test hosted some incredibly groundbreaking FULL CONCERTS, two of which were the original Bob Marley and The Wailers, and Return To Forever (performing most of Romantic Warrior). Bootlegs of many of these shows are available but were recorded from nth generation tapes. Any one of these classic full shows would have been a much better choice for release than this hit and miss (mostly miss) collection of singles. I'm disappointed in this, and I believe they will be too once they see their sales numbers.
Answer:
Negative