Get all AGROVOC terms with local RING URIs and original AGROVOC URIs

PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX skos: <http://www.w3.org/2004/02/skos/core#> PREFIX owl: <http://www.w3.org/2002/07/owl#> DESCRIBE ?uri ?externalUri WHERE { ?uri rdf:type skos:Concept . ?uri skos:inScheme <http://ring.ciard.net/taxonomy_vocabulary/18> . ?uri owl:sameAs ?externalUri}