Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great Documentary

This is an engrossing yet heartbreaking documentary on the youth violence culture endemic to the Greater Chicago, IL area. Frontline does not pull any punches on the breadth and depth of their coverage. They show the despair, violence, and utter hopelessness of the situation while focusing on those special individuals trying to turn their communities around,This is not an "academic" travel into urban sociology or politics. This is a caption of how an entire community adopts the self-destructive values and how some very strong people are fighting to take back their communities.