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TEKORD
RDF-ized controlled vocabulary of Norwegian terms with Universal Decimal Classification numbers; library metadata from the Norwegian University of Science and Technology. -
FAO geopolitical ontology
The FAO geopolitical ontology provides a master reference for geopolitical information, as it manages names in multiple languages (English, French, Spanish, Arabic, Chinese,... -
prefix.cc
A community-curated collection of namespace prefix mappings for use in RDF applications. Features a lookup API and bulk download.