Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
One example is below.
Q: I've read this book with much expectation, it was very boring all through out the book
A: Negative
Rationale: Review writer does not like the book because it was boring, therefore it is a negative review.
Q: While I like the looks of this set a lot, with its retro feel, I find the shaker to be in need of a design overhaul. Every time this is used (and it's been used by several people so I don't think it's a user problem) it spills while pouring! This has been very frustrating to lose good top shelf vodka because of poor design. I had to go out and purchase another shaker because of this problem so I would not recommend this set.
A:
Negative