Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Poor execution, poor characterization, poor ending

I'm sure I've read worse books than this one, but not many. The characters in the book were so exaggerated they were unbelievable, and their actions totally unrealistic. I forced my way to the end, hoping it would redeem the book somewhat for me, but the ending was the worst part of all. Talk about lack of resolution.The book also suffers from poor research. I'm surprised he hasn't been sued by the beef industry for his representation of them in this book. If things were really as bad as he makes them out to be, people would be dropping like flies.If you want to read a good medical thriller, try Michael Palmer. He is a much better writer.