query-a6ae85f042719d342fe328b630dfa516

rq turtle/ttl

Filter authors by province in Spain AND department of FranceHello, I want to create a query to search basque language book authors birthplace by province. The best I have is this:

Use at

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?authorLabel ?provinceLabel WHERE {
  SERVICE wikibase:label { bd:serviceParam wikibase:language "eu,en". }
  ?liburu wdt:P31 wd:Q571.
  ?liburu wdt:P364 wd:Q8752.
  ?liburu wdt:P50 ?author.
  ?author wdt:P19 ?birthplace.
  ?birthplace wdt:P131 ?province.
}

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v2("?author") v3("?birthplace") v1("?liburu") v4("?province") c4(["eu,en"]):::literal c2(["bd:serviceParam"]):::iri c8(["wd:Q8752"]):::iri c6(["wd:Q571"]):::iri subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c2 --"wikibase:language"--> c4 end v1 --"wdt:P31"--> c6 v1 --"wdt:P364"--> c8 v1 --"wdt:P50"--> v2 v2 --"wdt:P19"--> v3 v3 --"wdt:P131"--> v4