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

Example Input: Altough the content on childbirth is descriptive (at times a bit too descriptive), the commentator/director Sheri Bayles is one of the most annoying, irritating, wanna-be-actresses that my husband and I have ever seen. Her approach to teaching by injecting humor is painful, and it took all of our strength to not plug our ears and cover our eyes to watch this woman. If you can handle obnoxious, loud and nerdy instructors, then you may enjoy this DVD. The 5 couples she works with in the instruction look bored and confused.
Example Output: Negative

Example Input: This product arrived on time and in excellent condition. These boots have a good arch and seem sturdy. They do look a little cheaper than I anticipated. The tread is great. Size runs true.
Example Output: Positive

Example Input: I'll give the Neptunes Props for being Successful in a very tough Business to make a mark in&they have been doing well for some time now.but as far as Pharell thinking He is the 2nd-Coming of Curtis Mayfield? NAW!Double NAW!!!! Pharell has Radny Watson written all over Him Vocally to me.whenever I watch Pharell up there singing I have a "Coming to America" Flashback.but the scary part is that alot of folks are taking His Singing Career as legit.
Example Output:
Negative