Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Example Input: I'm no great fan of bluegrass or country, but this release intrigued me because - like many people, I suspect - I have a soft spot for Dolly. "The Grass is Blue", though, really is as good as the other reviewers have said.
Example Output: Positive

Example Input: I just got my 2007 edition copy of "Interpretation of Dreams" in the mail so I haven't had a chance to read it. So this rating is only on the particular edition that is published by NuVision. They did not include an index or any information about who translated this version. Also, the table of contents is nearly worthless; no detail what-so-ever about the chapters, not even titles of the chapters, just Chapter 1 etc. and a page number. Even though you may think a newer publication is better, this one is much much worse and more expensive. Go with the 1980 publication. I'm returning the book to Amazon (who gets 5 stars for customer service!)
Example Output: Negative

Example Input: This rod is way to small for use with a shower curtain. I have no idea why it even comes up in the search. It may work for a simple curtain, but I doubt it.
Example Output:
Negative