Given the task definition, example input & output, solve the new input case.
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Example: I've read this book with much expectation, it was very boring all through out the book
Output: Negative
Review writer does not like the book because it was boring, therefore it is a negative review.

New input case for you: I bought it before I knew anything. Now that I have been training a bit more and reading more I realized that this book is lacking a whole lot. I do not really recomend this book unless you can get it for free.
Output:
Negative