concept: event-system-scenario
concept: https://vernacular.cloud/iH40kgqODIeKGpwkmfdZAQnQ/
this version: https://vernacular.cloud/0.0.4/iH40kgqODIeKGpwkmfdZAQnQ/
Definition
What is the third term of system-scenario? Situation, Actuality, Event