query-75a01faa96d0672cb1aff0b01fb214fb

20:13, 11 October 2018 (UTC)) talkHow should I optimize the query? Thanks in advance! strakhov (

Use at

https://query.wikidata.org/sparql

PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX schema: <http://schema.org/>
SELECT ?item ?LabelES
WHERE
{  
  ?item wdt:P31 wd:Q4167836 .
  ?sitelink schema:about ?item; schema:isPartOf <https://es.wikipedia.org/> ; schema:name ?LabelES;
  FILTER ( REGEX(?LabelES, "^Categoría:Iglesias .*") )
}

Query found at

https://www.wikidata.org/wiki/Wikidata:Request_a_query/Archive/2018/10

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v1("?LabelES"):::projected v2("?item"):::projected v3("?sitelink") c6([https://es.wikipedia.org/]):::iri c3(["wd:Q4167836"]):::iri f0[["regex(?LabelES,'^Categoría:Iglesias .*')"]] f0 --> v1 v2 --"wdt:P31"--> c3 v3 --"schema:about"--> v2 v3 --"schema:isPartOf"--> c6 v3 --"schema:name"--> v1