Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.

Example Input: It's pretty nice and comes with a little book with interesting proverbs too. I'm not sure if it really helps to relieve stress but it's makes a fun distraction once in a while. The only complaint is when other people play around with it, they always spill sand out the box..
Example Output: Positive

Example Input: So far I'm very happy with my boots.They fit well and seem very well constructed.Time wiill tell how they perform but so far so good.
Example Output: Positive

Example Input: Boy, this was a disappointing read. The characters were not well developed (hence challenging to keep track of), the plot was implausible yet predictable, and half way through I had to wrestle with whether or not to even finish the book. I did, although it was unrewarding to do so.I'd rate this lower if I could.FYI, if you're looking for an alternate selection in the same genre, I highly recommend Silent Joe by T. Jefferson Parker.
Example Output:
Negative