@prefix rdf: . @prefix ecrm: . rdf:type ecrm:E21_Person . @prefix rdfs: . rdfs:label "Tony Williams" . @prefix foaf: . foaf:name "Tony Williams" . @prefix dc: . dc:identifier "20083095" ; foaf:firstName "Tony" ; ecrm:P131_is_identified_by "Williams, Tony" ; foaf:surname "Williams" .