Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Example: I've read this book with much expectation, it was very boring all through out the book
Example solution: Negative
Example explanation: Review writer does not like the book because it was boring, therefore it is a negative review.

Problem: Sp65 is difficult to program. Detailed instructions are not included with purchased item, and send you to a web page that is unavailable (www.sonicblue.com/support). I think this is a piece of junk!
Solution: Negative