bif

http://www.openlinksw.com/schemas/bif# link to namespace URI +1+1

http://blabla.org/bidule# link to namespace URI +1+1

http://virtuoso.openlinksw.com/data/turtle/general/VirtuosoBIFFunctions# link to namespace URI +1+1

http://www.openlinksw.com/schema/sparql/extensions# link to namespace URI +1+1

Add alternative URI