<http://example.org/profiles/director.html> <http://www.w3.org/2000/01/rdf-schema#label> "Director".
<http://example.org/profiles/director.html> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/ontology/po/Role>.
<http://rdfa.info/test-suite/test-cases/rdfa1.1/html5> <http://purl.org/ontology/po/role> <http://example.org/profiles/director.html>.