instruction:
Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
question:
This book it simply one of the best science fiction stories ever written. It should be on the "must read" list for any sci-fi fan.
answer:
Positive

question:
I have had to replace my powerbook power cord twice already. Both times before I broke the bank by purchasing the cord from apple. Big mistake. Although steep in price those things are C-H-E-A-P! This last time i decided to go with the Macally. What a great deal! Much more durable than then apple version. It is also more compact. The only thing missing is the indicator light to let you know if the battery is charging. Not a big deal for such a great price!
answer:
Positive

question:
This is the best scifi novel I have read for a while, goes above and beyond the author's revelation space series. It has real characters, good description of spaceflight in the next few decades, a mystery which really shocked me when revealed (didn't see that coming), plus big ideas and revalations about intelligent life in the universe. Everything fits together perfectly, highly recommended.
answer:
Positive