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

Example input: I've read this book with much expectation, it was very boring all through out the book
Example output: Negative
Example explanation: Review writer does not like the book because it was boring, therefore it is a negative review.
Q: Very pleased with EarGels & was surprised how fast they arrived. Certainly makes a big difference in being able to use my Jawbone, which would not stay in my ear with any of the factory supplied ear molds. Jawbone would do well to cut a deal with Jabra to furnish Ear Gels with all their Jawbones. Use it about 75% more now. Thanks for a good deal & fast shipping.
A:
Positive