query-c9868a134677cd12c98ae2486d394878

TODO

Use at

https://query.wikidata.org/sparql

PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
SELECT ?item ?dummydate WHERE {
    ?item wdt:P21 wd:Q6581072 .
    ?item wdt:P570 ?dummydate

    FILTER(SUBSTR(STR(?dummydate),1,6) = 'Mar 25') .

    OPTIONAL {
    ?wiki0 <http://schema.org/about> ?item .
    FILTER(SUBSTR(STR(?wiki0),1,24) = 'https://en.wikipedia.org') .
    }
  FILTER(bound(?wiki0))
}

Query found at

https://www.wikidata.org/wiki/Wikidata:Request_a_query/Archive/2017/02

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v2("?dummydate"):::projected v3("?item"):::projected v1("?wiki0") c7(["wd:Q6581072"]):::iri f0[["bound(?wiki0)"]] f0 --> v1 f1[["substring(str(?dummydate),'1^^xsd:integer','6^^xsd:integer') = 'Mar 25'"]] f1 --> v2 v3 --"wdt:P21"--> c7 v3 --"wdt:P570"--> v2 subgraph optional0["(optional)"] style optional0 fill:#bbf,stroke-dasharray: 5 5; v1 -.http://schema.org/about.-> v3 end