Instruct: Classify a review as either positive or negative.
Query: The sky is falling and this book will hit you in the head!

This book turned the first part of my wife's pregnancy into a nightmare of worry. You can't imagine how negative the tone of this book is.I bought William Sears Pregnancy Book. Sears' book is more informative, more even toned, and successfully set my wife at ease. Buy this book instead.