query-17942f99fbafabe7e0e5dbfcc0f73035

qui génère:

Use at

https://query.wikidata.org/sparql

PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX schema: <http://schema.org/>
select ?lieu {
  ?lieu wdt:P1464 ?cat 

      OPTIONAL { ?wartfrcat schema:about ?cat . ?wartfrcat schema:inLanguage "fr" }
     FILTER(!bound(?wartfrcat))
  optional { filter(! bound(?cat)) } .
} LIMIT 10

Query found at

https://www.wikidata.org/wiki/Wikidata:Bistro/Archive/2016/02

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v2("?cat") v3("?lieu"):::projected v1("?wartfrcat") c4(["fr"]):::literal f0[["not bound(?wartfrcat)"]] f0 --> v1 v3 --"wdt:P1464"--> v2 subgraph optional0["(optional)"] style optional0 fill:#bbf,stroke-dasharray: 5 5; v1 -."schema:about".-> v2 v1 --"schema:inLanguage"--> c4 end subgraph optional1["(optional)"] style optional1 fill:#bbf,stroke-dasharray: 5 5; end