Once you defined your model, run gradle generateScenarioSource.
This will run the code you put in the GenModel.decorate method and generate all classes you described.
You can check out the results in the de.uniks.studyright package in the src/main/java source directory.
Rendered as a class diagram this model looks like this:
src/main/java/de/uniks/studyright/classDiagram.png:
