PREFIX st:   <http://ns.inria.fr/sparql-template/>
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX dc: <http://purl.org/dc/elements/1.1/>
PREFIX fun: <http://w3id.org/sparql-generate/fn/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
PREFIX obo: <http://purl.obolibrary.org/obo/>
PREFIX swrl: <http://www.w3.org/2003/11/swrl#>
PREFIX prov: <http://www.w3.org/ns/prov#>
 
BASE <https://saref.etsi.org/documentation/>

SELECT  <getLabel.rqg>( ?entity, ?lang ) ?label
WHERE {
  VALUES ( ?property ?priority ) { 
        ( rdfs:label 1 ) 
        ( skos:prefLabel 2 ) 
        ( obo:IAO_0000118 3 ) }
  ?entity ?property ?label
  FILTER(LANG(?label) = str(?lang) || LANG(?label) = "").
} ORDER BY DESC ( LANG(?label)) ?priority
LIMIT 1