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

Input: Consider Input: It was painful to watch. I was tempted to give it two stars - I love his parents in this movie - until Sam and his girlfriend hopped into the company car after finding out her boss worked for the deceptions. It was just bad.

Output: Negative

Input: Consider Input: I've owned this CD for a few years, yet thought something was slightly off, so I compared "Keep A Knockin" to another copy I have.Results:Original is 168 beats per minutes, while this version is 172 beats per minute.Original's time is 2 min. 23 seconds; this version is 2:16 min.

Output: Negative

Input: Consider Input: This is a great costume. All the extra pieces make it really great. This is one of our favorite costumes.
Output: Positive