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curl -d 'query= SELECT DISTINCT ?g WHERE { GRAPH ?g { ?s ?p ?o . } } ' http://lobid.org/sparql/ |
federated search query
Querying the lobid.org database using an ISBN. The lobid.org resource has a link to dbpedia.org, and thus the dbpedia.org is queried using this link. The keyword "SERVICE" enables the federated search, specified by the SPARQL-Endpoints of these "services".
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curl -H "Accept: text/turtle" --data-urlencode 'query=
DESCRIBE ?dbpedia WHERE {
?s <http://purl.org/ontology/bibo/isbn13> "9780940450004" ;
<http://rdvocab.info/RDARelationshipsWEMI/workManifested> ?dbpedia .
SERVICE <http://de.dbpedia.org/sparql> { ?dbpedia ?p ?o. }
}
' http://lobid.org/sparql/
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