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

Q: This is nothing new from Gail Howard, or at all. These wheeling systems can be worked out mathematically, without paying for this book. There are also lots of websites that offer number generators and wheeling system explanations for free. If you want it all spelled out for you then buy this book, but if you are willing to do a little mathematical work check out lottery information website like [...].

A: Negative
****
Q: Last year I found this book and once I opened it I could not put it down. Bugliosi is excellent at bringing the details to life on the page. Not only do we get a first hand account of the trial, but he also explains much of the legal process in very clear and understandable terminology. I am now a fan of his work and will be reading everything I can of his.

A: Positive
****
Q: Why does everyone rave about this? One of the reviews even says, "If you need this then get it." Yeah, if you're travelling you need this, but more importantly why can't Apple just sell the different adapaters individually? Apple must assume that a lot of people have more than one of their products - perhaps a macbook and an ipod, so wouldn't it make more sense to sell the adapters individually, that way one could buy for example two European adapaters, one for ipod and one for macbook? Another apple rip-off if you ask me.

A:
Negative
****