query-b593e36535d02d50bef34a20f265646f
Redundant qualifiers So9q Zblace Madamebiblio Peter F. Patel-Schneider VIGNERON Epìdosis participants of WikiProject Redundancy Notified , that gives data on the main item that are already present on the target item used as value. See this SPARQL query for instance: (P20)place of death and (P19)place of birth I noticed there is a lot of redundant qualifier for
Use at
- https://query.wikidata.org/sparql
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
PREFIX p: <http://www.wikidata.org/prop/>
SELECT * WHERE {
?q p:P19 ?node .
?node ps:P19 ?loc ;
pq:P17 ?country .
?loc wdt:P17 ?country .
}
Query found at
graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
v4("?country"):::projected
v3("?loc"):::projected
v2("?node"):::projected
v1("?q"):::projected
v1 --"p:P19"--> v2
v2 --"p:statement/P19"--> v3
v2 --"p:qualifier/P17"--> v4
v3 --"p:direct/P17"--> v4