Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Great Eye Opener!

For me this book has served to be very educational and is what motivated me to make a few lifestyle changes to help improve the quality of myself and family. It's mind boggling to know that there's so many harmful chemicals out there. But it's just as relaxing to know that there's alternatives that you can use. The amount of references given in the book is awesome and Ms. Dadd should be accredited for such a fine book!C.B.