query-5d701da10aac7f4b63b4f4f298f39cfc
With this query, I want to filter out chess players with FIDE ID that have already a federation statement with a "stated in" reference. Obviously it does not work. Whats wrong?
Use at
- https://query.wikidata.org/sparql
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX prov: <http://www.w3.org/ns/prov#>
PREFIX pr: <http://www.wikidata.org/prop/reference/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?item ?itemLabel
WHERE
{
?item wdt:P106 wd:Q10873124.
?item wdt:P1440 ?fide .
MINUS { ?item p:P1532 ?P1532statement.
?P1532statement prov:wasDerivedFrom ?refnode.
?refnode pr:P248 [].} .
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}
Query found at
graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
v3("?P1532statement")
v2("?fide")
v1("?item"):::projected
v4("?refnode")
a1((" "))
c8(["bd:serviceParam"]):::iri
c2(["wd:Q10873124"]):::iri
c10(["#91;AUTO_LANGUAGE#93;,en"]):::literal
v1 --"p:direct/P106"--> c2
v1 --"p:direct/P1440"--> v2
subgraph minus0["MINUS"]
style minus0 stroke-width:6px,fill:pink,stroke:red;
v1 --"p:P1532"--> v3
v3 --"prov:wasDerivedFrom"--> v4
v4 --"p:reference/P248"--> a1
end
subgraph s1["http://wikiba.se/ontology#label"]
style s1 stroke-width:4px;
c8 --"wikibase:language"--> c10
end