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: If I could give a 0 star I would.So I bought this airbed while I had a friend visiting so she could use my bed. It seemed to work just fine the first night. However the second time I inflated this bed and slept on it, I got the worst night of sleep ever. During the night, the air slowly came out of the bed (I have checked all over for leaks or holes but could not find anything). I woke up several times to a half inflated bed and then had to re-inflate the bed again only to wake up an hour later to the same condition. Needless to say, I am extremely unhappy with the product. Hope Amazon will let me return this terrible thing.
Solution:
Negative