You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

I've read this book with much expectation, it was very boring all through out the book
Solution: Negative
Why? Review writer does not like the book because it was boring, therefore it is a negative review.

New input: This science fiction novel walks around the speculative situation about a natural (not social and not even political choice) population distribution, in agreement his skills and gifts.Naturally many facts occur in this interesting tale , but the most remarkable issue is to make us think the elusive dreams about a better and even pacific society.
Solution:
Positive