Instruct: Classify Amazon reviews into positive or negative sentiment
Query: One of the worst books I've ever read!

This is the first book I've read by Kellerman and the last! It's whole plot is way overdone and unbelievable. The descriptions of how the detectives are running their investigation don't ring true. The characters and the relationships between them are very poorly defined. I usually pass books on to my friends when I'm finished reading them. This one went right in the trash!