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

Example Input: The old saying hollywood never lost money underestimating the intelligence of the american people really hits you in the groin with this head shaker of a release.While the orignal classic rollerball hasn't even gotten an anamorphic dvd release, let alone a blu-ray!
Example Output: Negative

Example Input: I love how this product makes me look in my clothes!!! its shapes me into a perfect hourglass! i dont know if the claim that it permanantley reduces your waist after 30 days is true because i havent had it that long. my only complaints are that it is a little too short, so i still have a small bulge over the top in vthe back and i think it may be stretching out as i wear it as oppossed to it shrinking me, but overall, it is the best shapewear i have ever purchased. i love it and would recommend it to anyone.
Example Output: Positive

Example Input: I can't understand how Manhattan Transfer gets all those studio musicians to play on their albums. I mean, it just makes their singing sound worse against the best drumming (Steve Gadd), bass playing and sax playing in the world. The two stars are for Kafka and the studio musicians only.
Example Output:
Negative