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

[EX Q]: The book covers several generations, so with each generation you have to re-learn all the characters. It is difficult to keep track of who's who when every time you get to know the cast, 200 years suddenly pass and we're in the middle of a new crisis. I didn't read the whole series because of this -- it was obnoxious.
[EX A]: Negative

[EX Q]: This book is not for everyone. It is extremely scary and disturbing. At the same time, it is a fascinating look at the police work and prosecution that brought the murderous Manson Family to justice. The book is hard to put down; the in depth discussion on presenting a criminal case in court and developing evidence to support the case is outstanding. The main complaint is that the book is a few hundred pages too long. The author seems a little too self-promoting, but then again he did get a prosecution on one of the biggest murders in history.
[EX A]: Positive

[EX Q]: I hate giving classics bad reviews. This book was not for me. Nothing captured my attention and I found that I had to force myself to read it. If it had been any longer I would have stopped. It did catch my interest a little in the end, but not enough to redeem the book in any way.
[EX A]:
Negative