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: This was purchased for my daughters halloween costume. BEWARE! Very cheap material! The sizes are different from what it reads online, and the pieces of the costume are different sizes. For example: the skirt is waaaay too small but the pullover "boots" fit just fine. As all the other reviews claim, the outfits "color/graphics" peeled off because it was stuck to the plastic package. I do not recommend this unless they are only using it for dress up.
Solution:
Negative