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: Ever since I read Clan of the Cave bear and its sequel The Valley of Horses, I have been looking for books just like it. If i were you, i would rush to the bookstore or the library and get it. Don't wait. Its a good book.
Output:
Positive