query-d69e3bd0b92c3f02e14a36e440c9de76

rq turtle/ttl

Query shows entries, which should be filter out; number of entries in result set changes when executed repeatedlyTask T267175PhabricatorTracked in Hello, the following query should return all german streets, which have a Commons-sitelink, but no Commonscat-Property (P373):

Use at

PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX schema: <http://schema.org/>
SELECT ?item ?commonscat ?sitelink  WHERE {
  ?item wdt:P31 wd:Q79007. # Innerortsstraße
  ?item wdt:P17 wd:Q183.   # Deutschland
  ?sitelink schema:about ?item .
  ?sitelink schema:isPartOf <https://commons.wikimedia.org/> .
  OPTIONAL {?item wdt:P373 ?commonscat }  
  FILTER (!bound(?commonscat))   # nur jene OHNE commonscat-Property (P373)
}

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v1("?commonscat"):::projected v2("?item"):::projected v3("?sitelink"):::projected c2(["wd:Q79007"]):::iri c7([https://commons.wikimedia.org/]):::iri c4(["wd:Q183"]):::iri f0[["not bound(?commonscat)"]] f0 --> v1 v2 --"wdt:P31"--> c2 v2 --"wdt:P17"--> c4 v3 --"schema:about"--> v2 v3 --"schema:isPartOf"--> c7 subgraph optional0["(optional)"] style optional0 fill:#bbf,stroke-dasharray: 5 5; v2 -."wdt:P373".-> v1 end