Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Biochemic Handbook

This is by far the best alternative health book I've ever read. It tells you everything you needed to know about your health but were never told. All those niggling little ailments that we all get yet brush away until something bad goes wrong with our health - it gives symptoms and remedies. I have been consulting it for 23 years to fix up heaps of conditions.