synonyms.rq

PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
PREFIX zbwext:  <http://zbw.eu/namespaces/zbw-extensions/>
#
# List of synonyms (for use in RePEc/Ideas and maybe other applications)
#
# Uses STW descriptors as well as exact matching concepts from other thesauri
#
SELECT DISTINCT ?concept (str(?prefLabel) AS ?conceptLabel) (lcase(str(?label)) AS ?synonym)
WHERE {
  VALUES ( ?language ) {
    ( "en" ) 
  }
  ?concept a zbwext:Descriptor ;
    skos:prefLabel ?prefLabel .
  FILTER (lang(?prefLabel) = ?language)
  {
    # include all labels from STW
    {
      ?concept skos:prefLabel ?label 
    }
    UNION
    {
      ?concept skos:altLabel ?label 
    }
    # include labels from matching concepts in other thesauri
    UNION
    {
      ?concept skos:exactMatch/skos:prefLabel ?label 
    }
    UNION
    {
      ?concept skos:exactMatch/skos:altLabel ?label 
    }
  }
  FILTER (lang(?label) = ?language)
  # filter out labels which appear already as preferred labels
  FILTER (lcase(?prefLabel) != lcase(?label))
}
ORDER BY ?prefLabel ?label