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 written, this books topic was well known. Individuals and styles of communication were well understood.With time, the people and places Con Price refers to are only familiar to a few local individuals-and only important in regards to this fund of knowledge.I am currently working with Dr. William Thackery of MSU-Northern, Havre, Montana to upgrade and update the book and subscript the text for improved reading, relevance, and accuracy. Once done this text may be a leading contribution to the history of Montana and Southern Alberta.Yours,Ruth M. Burleigh P.O.Box 608 Chinook, Montana 59523 (406)357-4255
Answer:
Negative