@prefix data: . @prefix schema: . @prefix : . @prefix foaf: . data:1a4d3705-7880-3d9b-8519-4d749bd9dd80 schema:email "olivier.bole25@orange.fr" ; a :Agent, foaf:Agent . :hasContact data:1a4d3705-7880-3d9b-8519-4d749bd9dd80 .