@prefix rdf: . @prefix ecrm: . rdf:type ecrm:E21_Person . @prefix rdfs: . rdfs:label "Ridha Ben Mansour" . @prefix foaf: . foaf:name "Ridha Ben Mansour" ; foaf:firstName "Ridha" ; ecrm:P131_is_identified_by "Ben Mansour, Ridha" ; foaf:surname "Ben Mansour" .