Given reviews from Amazon, classify those review based on their content into two classes: Negative or Positive.
Example: I've read this book with much expectation, it was very boring all through out the book
Example solution: Negative
Example explanation: Review writer does not like the book because it was boring, therefore it is a negative review.

Problem: There are serious inaccuracies in this book that can cause a great deal of stress for a celiac. The section on medications with gluten is especially troubling as it causes someone who thought they were safe to worry for no reason. Most troubling is her treatment of the risks of cancer. Her treatment is both superficial, incaccurate and unrealistic. First she says that the risk is the same whether you maintain a gluten free diet or not. Then she says that the only thing you can do about it is to not worry about it. Her discussion of picking food out of a sandwiches is poor advice. In one section she understands the problems of cross contamination, yet doesn't seem to understand that picking apart food is more of a risk than using a toaster. Finally, her flip advice about how to avoid answering questions is ridiculous. Why not be honest instead of avoiding the questions. It's up to the person as to how many details they want to give. But avoiding the issue is not the answer.
Solution: Negative