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

Example Input: From a woman who sold out her body ages ago and now attempts to be a partisan hack, and poorly at that. Why anyone would want to wipe their feet on this dirty carpet is beyond me. Not worth the time it took to phone in sex.
Example Output: Negative

Example Input: I enjoy this book very much. It is a timely classic with which I am happy to now have my own copy.
Example Output: Positive

Example Input: Helter Skelter is one of those books that leave you in dismay because you can't believe the logic in the Tate-LaBianca murders. The "family" is truely an unbelievable group of people that absolutely butchered for the begining Helter Skelter. I would strongly recomend it to anyone.
Example Output:
Positive