Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Um... what?

I'm a huge Agatha Christie fan and a psychology major, so I was given this book as a gift by someone who though I would enjoy it. Wrong! By the time I was done reading it the cover was torn and the binding broken from being hurled against the wall in frustration. First of all, I get it. Second of all, it's this kind of [stuff] that give psychology a bad name. This guy has nothing better to do that rethink one of the greatest mystery novels of all time?..