query-a9ef8d6ff7e5a6cfc55d2e72f434d8f2

rq turtle/ttl

Find items without a value for a property?Hi! With the Query Service, how can I do a search for items without a property? I can do 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 ?human ?property
WHERE
{
  ?human wdt:P31 wd:Q5.
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". } 
}

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v1("?human"):::projected c4(["bd:serviceParam"]):::iri c2(["wd:Q5"]):::iri c6(["en"]):::literal v1 --"wdt:P31"--> c2 subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c4 --"wikibase:language"--> c6 end