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

Example Input: This is strictly a tourist rag. Don't waste your time. If your looking for a basic introduction to Voodoo, try Laennec Hurbon's Voodoo: Search for the Spirit; Voodoo & Hoodoo by Jim Haskins; Sallie Anne Glassman's Vodou Visions; Leah Gordon's Book of Vodou or even the Complete Idiots Guide to Voodoo.
Example Output: Negative

Example Input: I am a huge fan of science fiction and fantasy, and have been reading these books for 20 years. I picked up the Foundation books because Asimov was supposed to be so great, and I really enjoyed his short stories. This book - all of the books in this series - is so amazingly boring it could be used to replace Thorazine. The concept was solid, but the characters made me not care at all. I kept hoping they would die simply so there would be something interesting happening. If you must read it, check it out from the library and save your money. Unless of course you're a chronic insomniac; then, by all means, buy this book.
Example Output: Negative

Example Input: I enjoyed the first movie. I didn't think the second was as bad as everyone thought. Wow, this one was just atrocious. I'm not going into specifics as I'm sure the other reviews have but do not spend the $4.99 on downloading this. Wait for it to come out on HBO or whatever.
Example Output:
Negative