You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

I've read this book with much expectation, it was very boring all through out the book
Solution: Negative
Why? Review writer does not like the book because it was boring, therefore it is a negative review.

New input: I bought this product to slim my waist and I really didn't have big expectations for it at all. I figured I'd wear it under my clothes for a more defined shape. I've been wearing it for a month already and I've seen my waist go down 2 inches! I wear it all day at work from 7:00 till about 3:00. It fit snug in the beginning but after one week I had to go to the tighter hooks and even that is too big now and I may need to buy a small. I actually like wearing it but I recommend wearing a tank top under it because it will start to press into your skin and kind of make you sore ( hence the 4 star rating). I'm very happy with this product for the price. It works better than Spanx.
Solution:
Positive