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

Example input: I've read this book with much expectation, it was very boring all through out the book
Example output: Negative
Example explanation: Review writer does not like the book because it was boring, therefore it is a negative review.
Q: First of all, the information in the DVD is very informative but for $50 buck I figured it would show something more than a lady standing in front of a black curtain holding up the same anatomy pictures that are on my doctors wall. I love how she simulates labor by pushing a doll out of a wool hat....It was so realistic. I sat there thinking,'are you kidding me?' Sheri, the instructor, knows what she is talking about but is extremely annoying and shares a lengthy personal story for every point. For every 10 min of information, you get 20 minutes of insight into her personal life. I would pull my hair out and ask for general anestesia if she was my labor nurse.
A:
Negative