The Plot Twist Detector's Malfunction

Amazon develops an AI that predicts plot twists in novels. During testing, it reads an Agatha Christie mystery and confidently announces: 'The butler did it.'

The engineer sighs: 'No, the twist is that everyone EXCEPT the butler did it.'

The AI processes this, then responds: 'I need a vacation. Preferably somewhere with no murder, no English countryside, and absolutely no trains to anywhere Oriental.'