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: Really a life saver when it comes to go to a nice party and try to look spectacular especially for me that i give birth 7 months ago and i'm still try to work out the few pounds and belly i have left from that :) really i recomended. Money well spend it
Solution:
Positive