- Agent Relationship Ontology
The ontology of agent relationships, AgRelOn, defines relations of persons to other persons and to organisations
- The CWRC Ontology
The CWRC Ontology is the ontology of the Canadian Writing Research Collaboratory.
- Poder Vocabulary
A vocabulary to express information about people and their relations with Organizations, Companies, etc.
- Transparent Relations Ontology
A vocabulary to represent relations that should be more transparent, usually between powerfull people or institutions