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

Now, solve this: Bought for my mom for Christmas she loves this perfume and it does actually smell pretty good however I was supposed to recieve my order by the 20th at the latest.its now the night of the 22nd and I am very worried it wont be here for Christmas. UPDATE: Spoke with Amazons customer service and they are replacing my missing item. It will be here tomorrow. Still sucks cuz it wasn't here in time for christmas, however I'm just glad they are replacing it for me.
Solution:
Negative