Given the task definition, example input & output, solve the new input case.
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Example: I've read this book with much expectation, it was very boring all through out the book
Output: Negative
Review writer does not like the book because it was boring, therefore it is a negative review.

New input case for you: Before "Foundation" i'd read somes short-storys from Asimov, so i become insterested in his style. And what can i say now about this book? Really is a excelent piece of scifiction: Asimov united 4 independent stories in a book with lifely descriptions, a strong main-story and credibles characters in incredibles situations,...the result is just epic. So, with this book we become in eyewitness on the monumental development and fall of the human civilization... becoming it in a surrounding journey trought our future and past.
Output:
Positive