@prefix data: . @prefix schema: . @prefix : . @prefix foaf: . data:5f99ac54-3fb2-3c62-a261-3c4186d1c29a schema:email "pictartexpos@gmail.com" ; a :Agent, foaf:Agent . :hasContact data:5f99ac54-3fb2-3c62-a261-3c4186d1c29a .