Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I'm sad that I've finished reading this book

Have you ever read a book that you didn't want to finish because you didn't want to see it come to an end? And when it did end, have you ever felt lonely because you'll miss the characters and setting? This book is like that.Every time I opened this book, I was drawn into the world at Heart Lake, the school where the story takes place. I will defintely buy Carol Goodman's next book the day it is released.