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: What a colossal disappointment this turned out to be! The Justice League figures are the best superhero figures to come out since the Super Powers figures of the 1980s. They're colorful, durable, playable, and collectible. The Javlin 7 ship is also a nice piece for the Justice League collection. Imagine my disappointment over the Watchtower. While cool to look at, this toy is for display purposes only! As others have noted, it's shaky and falls apart with the slightest touch. What were the designers thinking when they created such flimsy legs for this heavy toy to be supported on? Also, the doors fly open quite easily. This toy will sit on my shelf with all the figures displayed on it. If you have small children avoid this at all cost and save your $35.
Solution:
Negative