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

Example Input: Do not buy this toy. If you are given this toy as a gift, return it for store credit. This is a flimsly and poorly designed stack of platic and paper. The secret door doesn't work, the elevator doesn't slide and toys get stuck in there. The suggested 10" batman doesn't work with the zip line, bungee or even the elevator. The add says "Using new adhesive technology, you can set up the Batcave on just about any wall" so they want us to glue this thing on to a wall.Please don't buy this toy.
Example Output: Negative

Example Input: First of all, don't even bother mentioning Sixty Watt Shaman in the same sentence as Alice and Chains and Soundgarden. Cantrell has more talent in his pinky than Sixty Watt has all together. If you want to check out real Stoner Rock, Kyuss and Queens of The Stone Age are a good start. This album is mediocre at best. Red Colony seems to be the only song I could really get into. Cool album cover though! Maryland must have a really lame Stoner Rock scene, because out here in CA, Sixty Watt Shaman would go unnoticed.
Example Output: Negative

Example Input: I've been reading this book lately. It was one of the first books recommended to me as to be really good. It is pretty good and I have to admit Sister Souljah does tell it like it is and she sounds very respectful towards herself and others. Personally I think she was too goodie-goodie, though. She stays monogamous for way too long. I'm not going by other reviews either. I don't know any girl that thinks as pure as her, and I know goodie-goodie girls! But all in all, the chapters are pretty much like glue and they're realistic. The book is definitely good and I do recommend it. Especially for people who like being in touch with who they really are. I definitely want to keep reading on.
Example Output:
Positive