@prefix rdf: . @prefix ecrm: . rdf:type ecrm:E21_Person . @prefix rdfs: . rdfs:label "Billy Roberts" . @prefix xsd: . @prefix schema: . schema:birthDate "1936"^^xsd:gYear . @prefix ns5: . ecrm:P98i_was_born ns5:birth . @prefix foaf: . foaf:name "Billy Roberts" ; foaf:firstName "Billy" ; ecrm:P131_is_identified_by "Roberts, Billy (1936)" ; foaf:surname "Roberts" .