Linked Open Vocabularies

LinkedGeoData ontology has been derived from concepts defined by Open Street Map @en

An ontology for using languages as resources @en

oso- Observatories of the Seas Ontology (OSO)

http://www.w3.org/ns/prov-o

Ontology describing the relationships between Regional Facilities, Sites, Platforms, Research Infrastructures, Organisations, Cruises, and the persons in charge of each level. @en