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: I take back my previous comments as now this adapter is dead, and MUCH faster than my original one. I await Macally's response to my request for a new one.
A:
Negative