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: Mr. Maddox has done a great service in analyzing the decision to use the atomic bomb on Japan. He systematically demolishes the arguements used by those who (for whatever reason) think that the bombing was unjustified. He shows through intercepted transmissions how the Japanese were ready to commit themselves to a bloodbath to fight off an invasion and how the Japanese military still wanted to fight even after Hiroshima was destroyed. Overall, the book is great work and should be required reading in schools and the Smithsonian Museum.
Solution:
Positive