Why did the accident happen? A norm-based reasoning approach

To understand well a text written in natural language (NL), we need our knowledge about the norms of its domain. By the word “norm”, we mean here the normal and expected course of events in the absence of exceptions [6]. This type of knowledge enables us to infer richer conclusions than those given by means of truth-preserving entailments, for example, from the text: “Mon véhicule se trouvait arrêté à un stop, quand u