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

Ex Input:
Having seen "The Dance" before, I was totally disappointed. I was expecting at least the full songs from the CD, but it has only interviews with the band and commentaries. Also the picture quality on my dvd (I bought Region 2) was just bad quality. Not worth buying.

Ex Output:
Negative

Ex Input:
There are people who will start reading this book then about 100 pages into it realize that it's going nowhere fast. Take my advice and keep reading. It gets much better, and more interesting. The ending is really good, and might have even upped this review a star.ac

Ex Output:
Positive

Ex Input:
As the author of [...] I recommend Your Child's Self-Esteem with all my heart.Until my book was out I told my clients, readers and workshop participants to read Briggs book. Although I treat tantrums differently, I find most of what Briggs said over 30 years agostill in line with my own guidance. She was way ahead of her timeand for the most part the book will give you everything you needto know about your child's self-esteem and more.

Ex Output:
Positive