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: glasses are awesome. They look great and they are larger than your average martini glasses. All my friends loved the glasses when I had a martini party.The shaker looks great, but alas, it leaks all over your hands when shaken, despite having a seal. So be careful!!But for this price, it's still a great buy.
Solution:
Positive