Une requête :

PREFIX abo: <http://artemisBookstore.com/ontology#>
PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX dbr: <http://dbpedia.org/resource/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX abr: <http://artemisBookstore.com/abr/> 
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

INSERT  {
   ?a abo:birthState ?birthState.
   ?birthPlace rdfs:label ?stateLabel.
}
WHERE {
    ?a a abo:Writer;
       foaf:name ?name;
       owl:sameAs ?dbpediaResource.
       FILTER (regex(str(?dbpediaResource),"dbpedia.org"))
    SERVICE <http://dbpedia.org/sparql> { 
           ?dbpediaResource dbo:birthPlace ?birthState .
           ?birthState rdfs:label ?stateLabel;
                       a dbo:AdministrativeRegion.
           FILTER langMatches( lang(?stateLabel), "EN" )
    } 
}

on peut vérifier que les insertions se sont bien déroulées avec la requête

PREFIX abo: <http://artemisBookstore.com/ontology#>
PREFIX dbo: <http://dbpedia.org/ontology/>
PREFIX dbr: <http://dbpedia.org/resource/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX abr: <http://artemisBookstore.com/abr/> 
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?a ?name ?birthState ?label where {
    ?a a abo:Writer;
       foaf:name ?name;
       abo:birthState ?birthState.
    ?birthState rdfs:label ?label.
} ORDER BY ?label

qui donne le résultat