Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Example: I've read this book with much expectation, it was very boring all through out the book
Example solution: Negative
Example explanation: Review writer does not like the book because it was boring, therefore it is a negative review.

Problem: I bought this particular zen garden for my younger sister because she enjoyed the one I had so much. I love the tools that come with it. The only problem I had with mine was one of the small feet came off from the bottom. My younger sister was very happy to receive this, but hasn't said anything beyond that.
Solution: Positive