Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Heart Has Reasons: Purchased at Amazon.com

The Heart Has Reasons is an amazing book. This is about people in the Netherlands who rescued Jews during the Holocaust. These people were all so brave, and still many of them didn't want recognition for what they did. It was also quite interesting watching the author wrestle with his own personal demons while researching and writing this book. The authors parents both lost much of their families to the Holocaust. The authors father and his immediate family were on the last boat out of Poland five days before World War II began. A very well researched book with lots of meaning and insight into why people would save others in trouble.