This query page is designed to help you test Web N+1.es SPARQL protocol endpoint.

SPARQL Query examples

Entities involved in the creation process of the guide:"Picoteo Dublinés" and their role.

SELECT distinct ?reference ?role WHERE {
   ?post <http://rdfs.org/sioc/ns#title> "Picoteo dublinés".
   ?gen <http://openprovenance.org/model/opmo#effect> ?post.
   ?gen <http://openprovenance.org/model/opmo#cause> ?process.
   ?used <http://openprovenance.org/model/opmo#effect> ?process.
   ?used <http://openprovenance.org/model/opmo#cause> ?reference.
   ?used <http://openprovenance.org/model/opmo#role> ?role.
}

Guide Links (limit to 100 guides)

SELECT DISTINCT ?a ?c WHERE {
?a a <http://webenemasuno.linkeddata.es/ontology/OPMO/Guide>.
?a <http://openprovenance.org/model/opmo#pname> ?c
} LIMIT 100

Link to a concrete guide (given the guide http://webenemasuno.linkeddata.es/elviajero/resource/Guide/20080112ELPVIAPOR_1.TES)

SELECT DISTINCT ?c WHERE {
 <http://webenemasuno.linkeddata.es/elviajero/resource/Guide/20080112ELPVIAPOR_1.TES> <http://openprovenance.org/model/opmo#pname> ?c
}

URLs of pictures (including title and URI) associated to a given guide (http://webenemasuno.linkeddata.es/elviajero/resource/Guide/20070519ELPVIAVJE_1.TES)

SELECT DISTINCT ?reference ?pname ?tit WHERE {
 ?gen <http://openprovenance.org/model/opmo#effect> <http://webenemasuno.linkeddata.es/elviajero/resource/Guide/20070519ELPVIAVJE_1.TES>.
 ?gen <http://openprovenance.org/model/opmo#cause> ?process.
 ?used <http://openprovenance.org/model/opmo#effect> ?process.
 ?used <http://openprovenance.org/model/opmo#cause> ?reference.
 ?reference a <http://webenemasuno.linkeddata.es/ontology/OPMO/Image>.
 ?reference <http://openprovenance.org/model/opmo#pname> ?pname.
 OPTIONAL {?reference <http://metadata.net/mpeg7/mpeg7.owl#title> ?t.
 ?t <http://www.w3.org/2000/01/rdf-schema#label> ?tit.}
}

Guides that are not well annotated in Barcelona (without author or title):

	select distinct ?guide 
	where{ 
	 ?guide a <http://webenemasuno.linkeddata.es/ontology/OPMO/Guide>.
	 ?guide <http://webenemasuno.linkeddata.es/ontology/OPMO/refersTo> <http://geo.linkeddata.es/resource/Provincia/Barcelona>.
	FILTER NOT EXISTS
	 {
	  ?guide a <http://webenemasuno.linkeddata.es/ontology/OPMO/Guide>.
	  ?guide <http://webenemasuno.linkeddata.es/ontology/OPMO/refersTo> <http://geo.linkeddata.es/resource/Provincia/Barcelona>.
	  ?guide <http://rdfs.org/sioc/ns#has_creator> ?author.
	  ?guide <http://rdfs.org/sioc/ns#title> ?title.
	 }
	}

Further information about SPARQL Query Language for RDF

Default Data Set Name (Graph IRI)


Query Text
select distinct ?Concept where {[] a ?Concept} LIMIT 100

(Security restrictions of this server do not allow you to retrieve remote RDF data, see details.)
Results Format Auto HTML Spreadsheet XML JSON Javascript NTriples RDF/XML CSV
Execution timeout milliseconds (values less than 1000 are ignored)
Options

Strict checking of void variables

(The result can only be sent back to browser, not saved on the server, see details)