query-e534fa880bf03d013814abf6df6fcae5

rq turtle/ttl

P27 without start/end time propertitesHi, I'm "tidying up" humans from Italy with multiple citizenship values (due to the change in government of 1946), adding P580 and P582... best I could do was this, only to realize that this is getting me only the "unknown values" in P580 and not those who lack the property.

Use at

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?human ?humanLabel ?citizenshipLabel ?start WHERE {
  ?human wdt:P31 wd:Q5;
    p:P27 [ps:P27 ?citizenship; pq:P580 ?start]
  FILTER isblank (?start)
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE]". }
}

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v3("?citizenship") v2("?human"):::projected v1("?start"):::projected a1((" ")) c7(["bd:serviceParam"]):::iri c9(["#91;AUTO_LANGUAGE#93;"]):::literal c2(["wd:Q5"]):::iri f0[["isBlank(?start)"]] f0 --> v1 v2 --"p:direct/P31"--> c2 a1 --"p:statement/P27"--> v3 a1 --"p:qualifier/P580"--> v1 v2 --"p:P27"--> a1 subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c7 --"wikibase:language"--> c9 end