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: I read this book after coming blind to the foundation books - I've never read Asimov in a novel before. I've noted how Asimov, when writing the books, was very much a part of his time. When a character doesn't smoke, it is a character trait to point out where everyone else smokes by course. Also, sexism is taken for granted, and when a female character assumes to be treated with equal rights it is a place for comment. I had hoped that we would have found better ways to get high and allowed more equality that far into the future, but I suppose smoke 'em if you got 'em.Anyways, I like this book better than the previous one because there are characters that you can root for and unexpected jerks in the plot-line and a more linear narrative based on the fact that a lot of the exposition is out of the way from the first book. I now cannot wait for the finale of the original series and debate weather to read the other three ancillary books that Asimov wrote later.
Solution:
Positive