rdf('http://www.w3.org', 'http://description.org/schema/Publisher', literal('World Wide Web Consortium')).
rdf('http://www.w3.org', 'http://description.org/schema/Title', literal('W3C Home Page')).
rdf('http://www.w3.org', 'http://description.org/schema/Date', literal('1998-10-03T02:27')).
