Various ontologies under the following categories:
- General upper ontology
- Museum artifacts
- Literary research
- Cultural research
These ontologies contain in total 71 950 concepts.
These ontologies are being merged into one ontology covering all the categories called The Finnish Collaborative Holistic Ontology (KOKO, http://www.seco.tkk.fi/ontologies/koko/). The Finnish Collaborative Holistic Ontology contains at the moment only 44363 concepts due to the fact that not all the ontologies have been added to it yet.
Most of the ontologies are multilingual. In the General upper ontology the names of concepts are in Finnish, Swedish and English, while for example in the Linguistics ontology the languages used are Finnish, Swedish, English, German and Estonian.