rdf('#JW', 'http://description.org/schema/name', literal('Jan Wielemaker')).
rdf('#JW', 'http://description.org/schema/works_at', literal('SWI')).
rdf('http://www.swi.psy.uva.nl/projects/SWI-Prolog/', 'http://description.org/schema/Creator', '#JW').
