Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Gripping account of the world's most notorious patient!

Intense, highly engrossing psychological study of Adoplh Hitler. Incredibly detailed and thorough, yet always immensely readable. The author has written with such objectivity so as not to leave any doubt of the twisted reasoning that drove the "destructive prophet." A must-read for 20th Century studies. A real eye opener.