query-b1acfe5d9f8a2b9e1874fe2b79c076c0

PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
PREFIX p: <http://www.wikidata.org/prop/>
SELECT ?wikidata ?start_date ?end_date ?wikidata_group ?wikidata_area WHERE {
   ?wikidata p:P39 ?mem .
   ?mem ps:P39 wd:Q33512801.
   OPTIONAL { ?mem pq:P580 ?start }
   OPTIONAL { ?mem pq:P582 ?end }
   OPTIONAL { ?mem pq:P4100 ?wikidata_group }
   OPTIONAL { ?mem pq:P768 ?wikidata_area }
   BIND(SUBSTR(str(?start),1,10) AS ?start_iso)
   BIND(SUBSTR(str(?end),1,10) AS ?end_date)
   BIND(IF(?start_iso = '2013-06-01', '', ?start_iso) AS ?start_date)
 }

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v4("?end") v8("?end_date"):::projected v2("?mem") v3("?start") v9("?start_date"):::projected v7("?start_iso") v1("?wikidata"):::projected v6("?wikidata_area"):::projected v5("?wikidata_group"):::projected c3(["wd:Q33512801"]):::iri v1 --"p:P39"--> v2 v2 --"p:statement/P39"--> c3 subgraph optional0["(optional)"] style optional0 fill:#bbf,stroke-dasharray: 5 5; v2 -."p:qualifier/P580".-> v3 end subgraph optional1["(optional)"] style optional1 fill:#bbf,stroke-dasharray: 5 5; v2 -."p:qualifier/P582".-> v4 end subgraph optional2["(optional)"] style optional2 fill:#bbf,stroke-dasharray: 5 5; v2 -."p:qualifier/P4100".-> v5 end subgraph optional3["(optional)"] style optional3 fill:#bbf,stroke-dasharray: 5 5; v2 -."p:qualifier/P768".-> v6 end bind0[/"substring(str(?start),'1^^xsd:integer','10^^xsd:integer')"/] v3 --o bind0 bind0 --as--o v7 bind1[/"substring(str(?end),'1^^xsd:integer','10^^xsd:integer')"/] v4 --o bind1 bind1 --as--o v8 bind2[/"if(?start_iso = '2013-06-01','',?start_iso)"/] v7 --o bind2 bind2 --as--o v9