SPARQL/Wikimedia Commons Query Service

Wikimedia Commons images use structured data too, see Structured Data on Commons (SDoC) . With Wikimedia Commons Query Service (WCQS) the data can be queried. This is available per 1/2/2022 at https://commons-query.wikimedia.org/ It was previously available in beta phase at https://wcqs-beta.wmflabs.org/. Find below an example of Depictions of Douglas Adams shown as image grid. sdc Show images of Douglas Adams in an image grid defaultView:ImageGrid SELECT ?file ?image WHERE { ?file wdt:P180 wd:Q42 . ?file schema:url ?image. } Mind: use |project=sdc where sdc =Structured Data on Commons, the default is |project=wd for Wikidata. See more examples on WCQS itself. The query below shows all properties of an image: sdc all properties of an image SELECT DISTINCT ?file ?predicate ?pLabel ?o ?oLabel WHERE { VALUES ?file { sdc:M107651852 } # an example image { ?file ?predicate ?o. BIND( IRI(REPLACE( STR(?predicate),"prop/direct/","entity/" )) AS ?p). } UNION { ?file ?predicate1 [ ?predicate ?o ]. # qualifiers BIND( IRI((REPLACE( REPLACE( STR(?predicate), "(direct/ statement/ value/ value-normalized/ qualifier/ reference/)", ""),"prop/","entity/"))) AS ?p). } FILTER( CONTAINS( STR(?predicate), "/prop/direct/") CONTAINS( STR(?predicate), "/prop/qualifier/") CONTAINS( STR(?predicate), "/prop/reference/") CONTAINS( STR(?predicate), "schema.org") CONTAINS( STR(?predicate), "w3.org") ) SERVICE <https://query.wikidata.org/sparql> { SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" . ?p rdfs:label ?pLabel . ?o rdfs:label ?oLabel . } } } LIMIT 100 This reveals some hidden statements like: date Modified / width / height / contentSize (bytes). The query below gives an example how to use it. sdc show hidden statements SELECT ?file ?instance_of ?instance_ofLabel ?inception_date ?dateModified ?width ?height ?contentSize WHERE { VALUES ?file { sdc:M107651852 } # an example image OPTIONAL{ ?file wdt:P31 ?instance_of. } OPTIONAL{ ?file wdt:P571 ?inception_date. } OPTIONAL{ ?file schema:dateModified ?dateModified. } OPTIONAL{ ?file schema:width ?width. } OPTIONAL{ ?file schema:height ?height. } OPTIONAL{ ?file schema:contentSize ?contentSize. } SERVICE <https://query.wikidata.org/sparql> { SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en" . ?instance_of rdfs:label ?instance_ofLabel . } } } This example with combination of SERVICE - mwapi shows Depicts statements with Dutch labels, of files in one Commons category sdc SELECT ?file ?title ?depicts ?depicts_label WITH { SELECT ?file ?title WHERE { SERVICE wikibase:mwapi { bd:serviceParam wikibase:api "Generator" . bd:serviceParam wikibase:endpoint "commons.wikimedia.org" . bd:serviceParam mwapi:gcmtitle "Category:Historia Naturalis van Rudolf II" . bd:serviceParam mwapi:generator "categorymembers" . bd:serviceParam mwapi:gcmtype "file" . bd:serviceParam mwapi:gcmlimit "max" . ?title wikibase:apiOutput mwapi:title . ?pageid wikibase:apiOutput "@pageid" . } BIND (URI(CONCAT('https://commons.wikimedia.org/entity/M', ?pageid)) AS ?file) } } AS %get_files WHERE { INCLUDE %get_files ?file wdt:P180 ?depicts . service <https://query.wikidata.org/sparql> { OPTIONAL {?depicts rdfs:label ?depicts_label FILTER (lang(?depicts_label) = 'nl') } } } References WCQSbeta2-release-notes on 1/2/2022 Commons-l announcement of WCQS on 22/7/2020