Part 1. Definition
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Part 2. Example
I've read this book with much expectation, it was very boring all through out the book
Answer: Negative
Explanation: Review writer does not like the book because it was boring, therefore it is a negative review.
Part 3. Exercise
This is my sixth edition, and this book is still a great way to get ready for the season.But the writing has taken a distinct turn toward the serious. The essays and player profiles are still chock full of relevant numbers and piercingly well-considered arguments, but this year they are also somewhat...I really don't want to say it...tedious.What was once a light-hearted romp through some serious baseball thinking is now rather dense and dry. I'll buy again next year, but I hope somebody sends them a keg of Lighten-Up.+
Answer:
Positive