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

Let me give you an example: I've read this book with much expectation, it was very boring all through out the book
The answer to this example can be: Negative
Here is why: Review writer does not like the book because it was boring, therefore it is a negative review.

OK. solve this:
This was a Christmas present for my son. I am in complete agreement with the other reviewers. It seemed like a great starter camera for my son and the price was right. But it is completely useless*********** Save your money!!!I followed the instruction on the software CD provided (more than once). It seemed very simple but when I open the Dual Camera software, it will show me the pictures in the camera, but then locks up. The program becomes unresponsive. I have been working with this for hours and am completely frustated. If any one has been able to find a way to get the pictures downloaded please help!!!!!!!!!!!
Answer:
Negative