query-4b97b4e7ec87e911f8879068bbac1a49

rq turtle/ttl

however are fine just rewriting using an “optional”, with filtering on a unbound variable however are fine just rewriting using an “optional”, with filtering on a unbound variable however are fine just rewriting using an “optional”, with filtering on a unbound variable maar het is prima om te herschrijven met een 'optional' met filtering op een 'unbound' variabele TODO however are fine just rewriting using an “optional”, with filtering on a unbound variable however are fine just rewriting using an “optional”, with filtering on a unbound variable however are fine just rewriting using an “optional”, with filtering on a unbound variable

Use at

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX schema: <http://schema.org/>
select ?articleFr ?item ?itemLabel ?some ?someLabel {
  {
    select * {?articleFr schema:about ?item ;
             wikibase:badge ?some ;
             schema:isPartOf <https://fr.wikipedia.org/>

      optional { ?articleEn schema:about ?item ;
               schema:isPartOf <https://en.wikipedia.org/> .
      }
      filter (!bound(?articleEn))
   }
  }
}

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v1("?articleEn") v2("?articleFr"):::projected v3("?item"):::projected v4("?some"):::projected c5([https://en.wikipedia.org/]):::iri c4([https://fr.wikipedia.org/]):::iri f0[["not bound(?articleEn)"]] f0 --> v1 v2 --"schema:about"--> v3 v2 --"wikibase:badge"--> v4 v2 --"schema:isPartOf"--> c4 subgraph optional0["(optional)"] style optional0 fill:#bbf,stroke-dasharray: 5 5; v1 -."schema:about".-> v3 v1 --"schema:isPartOf"--> c5 end