RDF 图与三元组 http://www.example.org/index.html http://www.example.org/terms/creation-date http://purl.org/dclelements/1.1/creator August 16, 1999 http://www.example.org/staffid/85740 http://purl.org/dclelements/1.1/language <http://www.example.org/index.htm1><http://purl.org/dc/elements/1.1/creator> <http://www.exampleorg/staffid/85740> <http://www.exampleorg/index.htm1><http://www.exampleorg/terms/creation-date>august16,1999 <http://www,exampleorg/index.htm1><http://purl.org/dc/elements/1.1/language>enRDF ◼ 图与三元组 <http://www.example.org/index.html> <http://purl.org/dc/elements/1.1/creator> <http://www.example.org/staffid/85740> . <http://www.example.org/index.html> <http://www.example.org/terms/creation-date> "August 16, 1999" . <http://www.example.org/index.html> <http://purl.org/dc/elements/1.1/language> "en"