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

used by 14:

• dbpedia-it
• event-media
• fiesta
• geospecies
• hellenic-fire-brigade
• hellenic-police
• higher-education-reference-ontology
• isocat-metadata
• lexinfo
• naturopathy2
• ogolod
• taxonconcept
• vivo-cu-boulder
• vulnerapedia