Instead of continuing the millennia old search for the universal ontology, different types of ontologies have been proposed in computer science. [.] [C]lassification of ontologies [is] based on their granularity and [their] thematic scope [differs] into top-level, domain, task, and application ontologies ... (Hitzler, Janowicz, Berg-Cross, Obrst, Sheth, Finin, Cruz 2012)