Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Let me give you an example: I've read this book with much expectation, it was very boring all through out the book
The answer to this example can be: Negative
Here is why: Review writer does not like the book because it was boring, therefore it is a negative review.

OK. solve this:
This is a book for all parents or parents to be, all people thinking of having children. Love and Logic is a program to help you be a more effect parent, raising responsible children. It can also be used on co workers and the rest.
Answer:
Positive