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:
This work has NO citations. It is not a scholarly book. The note in the back of the book mentions a few sources, but there are no direct citations for most of their "godless" assertions in the text of the book. Thus, the authors take huge liberties with their assertions. They ignore blaring facts such as over half of the signers of the Constitution had degrees in divinity.
Answer:
Negative