Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Give it a name

I've read Lt. Col. Grossman's book "On Killing" four or five times. So much so that my original copy is dog-eared and battered. I've also attended a seminar where he spoke. I highly recommend it. When I left the auditorium after the presentation, I realized that Lt. Colonel Grossman had given names to things I'd been feeling for years and not had names for. In that way he made my job easier. I'm a twenty-five year peace officer and have been in many critical incidents. I re-read Lt. Col. G's book again after my second officer-involved shooting to ensure that the coping mechanisms I chose and the things I was feeling were resolved and compensated for in a healthy manner. For police, military, trainers, doctors, psychology professionals, teachers or just for the citizen who wants to fully understand today's headlines, you need look no further.