Virtuoso Open-Source Edition: ODS.ODSSKOSRefExampleCommunity

Community Content Tags

PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX sioc: <http://rdfs.org/sioc/ns#>
PREFIX sioct: <http://rdfs.org/sioc/types#>
PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
SELECT DISTINCT ?tag ?topic
WHERE 
  {
    ?forum a sioc:Community .
    ?forum sioc:has_part ?parentf .
    ?parentf sioc:container_of ?post.
    optional { ?post sioc:topic ?topic } .
    optional { ?topic rdf:type skos:Concept  }.
    optional { ?topic skos:prefLabel ?tag }
  }

Sample Data (Live Query Results)

• Click Here for a live SPARQL Query (via SPARQL Protocol) against a collection of Community posts tags.