Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Of course! This is the answer... or is it?

Why didn't we see this earlier? This must be the answer! Why didn't we see it before? Why couldn't we figure out that John Wilkes Booth shot Lincoln because he had been playing so much Quake? Or that Cain got the idea of killing Abel after logging so many hours playing Doom? And of course Hitler decided to kill so many people after playing Soldier of Fourtune too much.Now, those of you reading this review may be wondering, "What the heck is this guy talking about? Those games didn't come out until after those killings!" (of course, the rest of you already know where I'm going with this). My point is that violence has been around since soon after the creation of Mankind (see Cain and Abel). Several people have said already that violence has actually been declining since these games have come out, even further disproving the theories set forth in this book...