Instruct: Classify a given review as either positive or negative.
Query: A godsend for parents.

When a child's temperature zooms at midnight, this is the book you want. Our family has relied on it, time after time, and through every imaginable crisis. I agree with the comment below that the flow charts and graphic arrangement make this an especially user-friendly book: zip-zip-zip through the chart, and you'll have either an accurate diagnosis, or a sense of comfort about what illness you're NOT dealing with. Very authoritative and thorough, but extremely easy to use, as well.