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:
If you are researching illumination of Spanish Codex and manuscripts this is the book to have. There are only two books written in English that cover this unique style; the other book on Spanish medieval illumination is:Early Spanish Manuscript Illumination. The quantity and quality of the pictures in "The Illuminated Manuscripts..." make the price worth it. Spanish 10-11th century illumination is quite separate and unique from the rest of Europe using lively imagery, repeating patterns and vivid color combinations. This book captures the spirit of Spanish medieval artwork and shows the world the finest examples of this form.
Answer:
Positive