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

[Q]: This product worked for 4-5 times and the rotation stopped working. Batteries run out or lose power after 3-4 uses. I would read reviews before buying another one... I am looking into the Hitachi wand massager now and I believe I will buy it since is a power operated toy and will never run out of power.Not impressed with this product.
[A]: Negative


[Q]: I've heard it said that this is Kerouac's greatest novel. I still say that honor is held by On the Road, but this book is just as good. And it is his most spiritual novel. Kerouac combines his talent at writing with his philosophy of life and what you have is a powerful tool to enlightenment. This book should be read on at least two levels, as a work of great literature and as a theological tool. I can't recommend it enough.
[A]: Positive


[Q]: It shocks me that the Scarlet Letter is the most taught book in the nation. It may have much symbolism and so on, but it is a convoluted mess. The author is completely detached from his audience, and for some bizarre reason, he feels he has to explain every little thing that happens in great detail. It is also irrelevant to our modern times. In our days people need to be reading things like Huxley, Orwell, Fitzgerald, Bradbury, Hemmingway, Steinbeck, Salinger, and many other great 20th century writers. This book is only relevant to those interested in the time period which it discusses.
[A]:
Negative