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

Ex 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.

Ex Output:
Negative


Ex Input:
Read her, you will enjoy your time with her characters. Strong women, strong men, some bizarre quirks in lots of characters.

Ex Output:
Positive


Ex Input:
I am writing this review after I confirmed that my first pair of these boots are bad with manufacturing defect. After reading all these excellent reviews about the Altitude IV, I purchased a pair with high expectations. However, my first pair had a defect in the left shoe. It lacked arch support and it was uneven on the bottom which made my foot hurt. At first, I thought it was just the insole which I put in another pair on top of what is in the boots. However, it did not help, and my foot continued to hurt. Today, I went to a retail store and tried out another pair of the same model and size, and the arch support is great in both feet with proper insole cushion. I promptly exchanged my boots.All in all, my point is that I am disappointed with Hi-Tec for making bad shoes and still allowed them to be sold. 5 star for these boots but 1 star for the poor quality control.

Ex Output:

Negative