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: Amazon responded immediately but forwarded to the supplier. Don't waste your money. It's a hand held wand that may or may not be infrared. Doesn't heat up to any degree that will be helpful. Still waiting to hear back from the supplier (two weeks now) to return this item. Know someone who has the EXACT same item and paid $10.... Enough said
Solution:
Negative