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: In reviewing the book Foundation I am recommending that you read all of the Foundation books by Asimov. Just get started and read them all. Even though each book can be read individually, do yourself a favor and read them in order. I won't be reviewing any other books in the series. I want you to do the whole series.One of the most interesting ideas that Asimov gives us is the ultimate form of self defense. No, it isn't karate or jiu jitsu, boxing or wrestling. It's touching the other person's mind.There are enough circles within circles, things that aren't what they seem to be, surprises that put the theories into a cocked hat, to keep you on your toes.Don't deprive yourself of the best sci fi series ever written.
Solution:
Positive