Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
One example: I've read this book with much expectation, it was very boring all through out the book
Solution is here: Negative
Explanation: Review writer does not like the book because it was boring, therefore it is a negative review.

Now, solve this: If you are a big fan of industry PR campaigns, then this book is for you!However, if you are a critical thinker that is interested in evidence and facts, this book is Junk.Interesting note: The author is affiliated with organizations that are funded by major industries such as 3M, Chevron, Dow Chemical, etc. He is most likely writing what they are paying him to write (e.g. their point of view).
Solution:
Negative