query-2cd12db04d23638068daee1db62789bf
Historical markers with missing directionsPlease use the following query:
Use at
- https://query.wikidata.org/sparql
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT DISTINCT ?marker ?markerLabel WHERE {
?marker wdt:P31 wd:Q21562164;
rdfs:label ?markerLabel FILTER((LANG(?markerLabel)) = "en").
FILTER NOT EXISTS { ?marker wdt:P2795 ?inscription }
}
Query found at
graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
v2("?inscription")
v1("?marker"):::projected
v3("?markerLabel"):::projected
c4(["wd:Q21562164"]):::iri
f0[["not "]]
subgraph f0e0["Exists Clause"]
e0v1 --"wdt:P2795"--> e0v2
e0v2("?inscription"):::projected
e0v1("?marker"):::projected
end
f0--EXISTS--> f0e0
f0 --> v1
f0 --> c1
f0 --> v2
v1 --"wdt:P2795"--> v2
f1[["?markerLabel = 'en'"]]
f1 --> v3
v1 --"wdt:P31"--> c4
v1 --"rdfs:label"--> v3