Linked Open Vocabularies

http://www.w3.org/ns/org#

Vocabulary for describing organizational structures, specializable to a broad variety of types of organization. @en

http://www.w3.org/ns/ssn/

This ontology describes sensors, actuators and observations, and related concepts. It does not describe domain concepts, time, locations, etc. these are intended to be included from other ontologies via OWL imports. @en

owl- The OWL 2 Schema vocabulary

http://www.w3.org/2002/07/owl

This ontology partially describes the built-in classes and properties that together form the basis of the RDF/XML syntax of OWL 2. @en