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: Like the famousMetal Massacre, Vol. 1, which is noteworthy for introducing the world to Metallica, Metal Massacre III's major claim to fame is that it unleashed thrash legends Slayer.The early Metal Massacre compilations are the best reflection of the American metal scene at the time, as such this 1983 release is full of power, traditional, and proto-thrash metal bands that are all clearly influenced by the NWOBHM scene. In addition to some of the "name" bands like Slayer, Virgin Steele, and Bitch, Metal Massacre III featured bands like Snowhite (later Znowhite) and Warlord that developed a cult following, as well Medusa, Test Pattern, Sexist, Marauder, and La Mort, who appear only on this album and were never heard from again.A lot of these bands and songs are raw and unpolished, but that was part of the charm of the early 80's metal scene. These Metal Massacre albums are a great way to revisit that era, and are a must-have for all old-school metalheads.
Solution:
Positive