Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Really unsatisfying

It's a book about a guy and his son who are walking somewhere for no reason. For some reason, everything is dead and destroyed, but you never find out why. Everyone is miserable, and they have to fight for survival, but yet they also have to keep walking. I kept reading it, hoping that something would finally get explained... it never happened. The ending was both depressing and doesn't explain anything. Very unsatisfying.The whole concept reminds me of that movie Ron Howard was attached to direct: "It's about a killer robot driving instructor who travels back in time for some reason" - "did I mention his best friend is a talking pie?"Maybe I'm not cultured enough to "get it" -- but The Road was one of the worst books I've ever read.