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

Ex Input:
Very intuitive in explaining the basic concepts and the fundamental and widely used methods in continuous-time finance. No deep background in math is required to have a good grasp of this book. I believe it is intuition rather than fancy skills that is important to build up interest and passion for studying a hard topic such as continuous-time finance.

Ex Output:
Positive

Ex Input:
I have two long haired cats and these are by far my favorite lint rollers--super sticky and gets the job done in record time.

Ex Output:
Positive

Ex Input:
its is unclear rather this really works with G4 Powerbook. the connector that plugs in to the powerbook fits , but the connection itself is unstable and easily disrupted by just a little wiggle or touch of the cable or connector. If you are looking for a replacement cable go with Apple branded. that one works .

Ex Output:
Negative