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

Example Input: While Jawbone make a great blue tooth ear bud, it doesn't interface with ears well. The Jabra solution doesn't work. It doesn't hold the ear bud well allowing it to fall off at the most inconvieniant times. It also hurts your ear and is difficult to insert. It's not the answer, friends.
Example Output: Negative

Example Input: not bad but be warned you need to buy extra play-doh at local store before handing it to the kid's
Example Output: Positive

Example Input: This book literally put me to sleep. I could wake up at 2 in the morning and find the book in my lap, and then have to stress over finishing the assigned reading for my English class. I mean, some of the sentences are about 15 lines long, and the plot, if there is a plot, is incredibly slow. If the author would just tell it like it is, and not drag it out for pages, the book would be only about a third of the length that it is. Boring, boring, BORING!
Example Output:
Negative