@prefix sd:    <http://www.w3.org/ns/sparql-service-description#> .
@prefix formats: <http://www.w3.org/ns/formats/> .
@prefix rdf:   <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix ns1:   <http://virtuoso:8890/sparql#> .
@prefix ns3:   <http://virtuoso:8890/> .

ns1:service  a                sd:Service ;
        sd:endpoint           ns3:sparql ;
        sd:feature            sd:DereferencesURIs , sd:UnionDefaultGraph ;
        sd:resultFormat       formats:SPARQL_Results_JSON , formats:RDFa , formats:N3 , formats:SPARQL_Results_CSV , formats:N-Triples , formats:Turtle , formats:SPARQL_Results_XML , formats:RDF_XML ;
        sd:supportedLanguage  sd:SPARQL10Query ;
        sd:url                ns3:sparql .