%META:TOPICPARENT{name="VirtSpongerLinkedDataHooksIntoSPARQL"}%


---+Example with pragma input:inference


The following example demonstrates usage of the <code> input:inference </code> pragma:

<verbatim>

## Create an Inference Rule skos-trans

PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

INSERT INTO GRAPH <urn:rules.skos>
  {
    skos:broader rdfs:subPropertyOf skos:broaderTransitive .
    skos:narrower rdfs:subPropertyOf skos:narrowerTransitive
  };

rdfs_rule_set ('skos-trans', 'urn:rules.skos');


DEFINE input:inference "skos-trans"
PREFIX p: <http://dbpedia.org/property/>
PREFIX dbpedia: <http://dbpedia.org/resource/>
PREFIX category: <http://dbpedia.org/resource/Category:>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX skos: <http://www.w3.org/2004/02/skos/core#>
PREFIX geo: <http://www.georss.org/georss/>

SELECT DISTINCT ?m ?n ?p ?d
WHERE
   {
     ?m rdfs:label ?n.
     ?m skos:subject ?c.
     ?c skos:broaderTransitive category:Churches_in_Paris OPTION (TRANSITIVE) .
     ?m geo:point ?p
     FILTER ( lang(?n) = "fr" )
     FILTER ( lang(?d) = "fr" )
   }
</verbatim>
   * [[http://bit.ly/11GbFaJ][View the SPARQL Query Definition via SPARQL Protocol URL]]
   * [[http://bit.ly/15c5J8o][View the SPARQL Query Results via SPARQL Protocol URL]]


---++Sponger Usage Examples

   * [[http://docs.openlinksw.com/virtuoso/virtuososponger.html#virtuosospongerusageprocessorex][SPARQL Processor Usage Example]]
   * [[http://docs.openlinksw.com/virtuoso/virtuososponger.html#virtuosospongerusageproxyex2][RDF Proxy Service Example]]
   * [[http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtDeployingLinkedDataGuide_BrowsingNorthwindRdfView#AncMozToc2][Browsing & Exploring RDF View Example Using ODE]]
   * [[http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtDeployingLinkedDataGuide_BrowsingNorthwindRdfView#AncMozToc3][Browsing & Exploring RDF View Example Using iSPARQL]]
   * [[http://docs.openlinksw.com/virtuoso/rdfinsertmethods.html#rdfinsertmethodplapissimpleexample][Basic Sponger Cartridge Example]]
   * [[http://docs.openlinksw.com/virtuoso/virtuososponger.html#virtuosospongerusagebriefex][HTTP Example for Extracting Metadata using CURL]]
   * [[http://docs.openlinksw.com/virtuoso/virtuososponger.html#virtuosospongercartridgetypesmetarestexamples][RESTFul Interaction Examples]]
   * [[http://docs.openlinksw.com/virtuoso/sect5_virtuosospongercreatecustcartrrgstflickr.html][Flickr Cartridge Example]]
   * [[http://docs.openlinksw.com/virtuoso/virtuososponger.html#virtuosospongercreatecustcartrexmp][MusicBrainz Metadatabase Example]]
   * [[VirtTipsAndTricksGuideAddTriplesNamedGraph][SPARQL Tutorial -- Magic of  SPARUL and Sponger]]

---++Related

   * [[VirtSpongerLinkedDataHooksIntoSPARQL][Sponger's Linked Data Middleware Hooks into SPARQL]]
   * [[VirtSponger][Virtuoso Sponger]]
   * [[http://virtuoso.openlinksw.com/Whitepapers/html/VirtSpongerWhitePaper.html][Technical White Paper]]
   * [[VirtSpongerCartridgeSupportedDataSources][Supported Virtuoso Sponger Cartridges]]
   * [[SPARQLSponger][SPARQL Sponger]]
   * [[VirtInteractSpongerMiddlewareRESTPatterns][Interacting with Sponger Middleware via RESTful Patterns]]
   * [[VirtSpongerCartridgeSupportedDataSourcesMetaRESTExamples][Interacting with Sponger Meta Cartridge via RESTful Patterns]]
   * [[VirtSpongerCartridgeRDFExtractor][Sponger Cartridge RDF Extractor]]
   * [[RDFMappers][ Extending SPARQL IRI Dereferencing with RDF Mappers]]
   * [[VirtSpongerCartridgeProgrammersGuide][Programmer Guide for Virtuoso Linked Data Middleware ("Sponger")]]
   * [[VirtProgrammerGuideRDFCartridge][Create RDF Custom Cartridge Tutorial]]
   * [[VirtSpongerCartridgeSupportedDataSources][OpenLink-supplied Virtuoso Sponger Cartridges]]
   * [[VirtAuthServerUI][Virtuoso Authentication Server]]
   * [[VirtOAuthSPARQL][Virtuoso SPARQL OAuth Tutorial]]
   * [[VirtSpongerACL][Virtuoso Sponger Access Control List (ACL) Setup]]
   * [[VirtSPARQLSecurityWebID][WebID Protocol & SPARQL Endpoint ACLs Tutorial]]
   * [[http://docs.openlinksw.com/virtuoso/virtuososponger.html][Virtuoso Documentation]]