rdf('__Description1', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#':value, literal('020 - Library Science')).
rdf('__Description1', 'http://mycorp.com/schemas/my-schema#':'Classification', literal('Dewey Decimal Code')).
rdf('http://www.webnuts.net/Jan97.html', 'http://purl.org/metadata/dublin_core#':'Subject', '__Description1').