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

[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.
[A]: Negative

[Q]: This book has solved the problems we had while trying to manage my son's diabetes.You can find all answers in diabetes management.
[A]: Positive

[Q]: Sp65 is difficult to program. Detailed instructions are not included with purchased item, and send you to a web page that is unavailable (www.sonicblue.com/support). I think this is a piece of junk!
[A]:
Negative