Building an application in SUREGEN-2 necessarily entails the definition of the concepts of the domain and their relations. Setting aside the definitional complications of this term, we follow GRUBER ("An ontology is a specification of a conceptualisation") and call this "ontology".
Suregen-II already has a base ontology of concepts for medical documents which can be built upon, but it is also possible to develop another ontology completely anew. The "built-in"-ontology covers among others:
Please note that this ontology is not optimised for elegance. There is, for instance, no "physical object" common superclass to "person" and "inanimate physical object" simply because it has not proved necessary for generation purposes and simplicity had priority over elegance in the design of SUREGEN-2.