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:
When I was young Lorne Doone was set for our final year. I never fininhed reading or did I like it. This time I found it a very good and well written, enjoyed and liked it very much. A fine picture drawn of life in hard situations hardly comprehended in our modern existant. Well worth reaading this book. Thank you Amazon.
Answer:
Positive