Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: I beg to differ with you all - this is a very sad book.

My daughter received this book for her seventh birthday today and as her father I was very excited to read it at bedtime. As I read it aloud, and we moved through the phases of a lifetime, I realized that the book was headed towards old age and...death. By the end, my daughter was crying and very upset. She does not upset easily, and we read hundreds of books a year, and this is the first time this has happened. I do not believe this book is appropriate for 4 - 8 year-olds, and I urge you to read it completely before sharing it with your child.