]> FOAF Essential v. 2.0 2.0 en FOAF Essential ontology Paolo Ciccarese Alan Ruttenberg Mindinformatics, Massachusetts General Hospital October 12, 2010 rdf/xml unstable An agent (eg. person, group, software or physical artifact). testing A document. unstable A class of Agents. testing An image. unstable An organization. stable A person. testing A personal profile RDF document. unstable A project (a collective endeavour of some kind). unstable An online account.