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

Example Input: I was expecting to read a book about the Amish. What I read instead was a very self centered book about a woman searching, rather blindly, I felt, for herself.She had very little in the way of insight into Amish life, even after spending a period of time with them. And her inability to get outside of her own head/her own life was not terribly interesting to read.For someone who always longed to be a 'star,' I am sure publishing a book was quite a thrill for her. Shame she used the Amish as a platform for her own ego.
Example Output: Negative

Example Input: If I could give this half of a star I would. I am a big fan of Nirvana, but this was a total disappointment to me. The tracks sounded awful. I felt like I was ripped off in every sense of the way. I took it to a buy-trade-sell place and not even they would offer me anything for it, which shows you the poor quality of this album. A word of advice; DO NOT BUY THIS!!!!!
Example Output: Negative

Example Input: I really didn't want to take Lamaze classes, just not my thing. So I researched DVD's and found the Laugh and Learn Series. This is an excellent teaching and exceeded my expectations. Very helpful, detailed and well layed out video. I watched it once and the second time I watched it I took notes. I maye even watch it one more time before my baby is born this July.
Example Output:
Positive