Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great out of the gate but not much for stamina.

This book started off as a gripping page turner. I read the intro/prolougue out loud to my husband I was so impressed. But that excitement quickly waned. The same scenes were described over and over again in succession as the bad guys offed yet another completely innocent person. I found myself longing for this book to get it over with so I could move on to better things. Then, all of the sudden it was over. I think maybe I'm missing some chapters. They get in the helicopter and fly away and that's it?!? Excuse me, but that's like getting half-way through the ninth inning and then having the teams walk off the field before it's over.In short, it seems like the author only had enough original material for 2 or 3 chapters. Maybe he should stick to short story writing.