Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This book was a complete waste of money.

Paper thin characters and mindless action fill this waste of paper and ink. The only character I cared about at all was the American's adopted mut. The whole premise of the book was flawed - I am sure that even in 1948 everyone knew what would happen if an incompatiable blood transfusion was attempted. Stupid, Stupid, Stupid...