query-4fa0422673b1deba8a1166f8f646ea18

rq turtle/ttl

it times out: (Q2285706)head of government However, if it try to do the equivalent with

Use at

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT DISTINCT ?country ?countryLabel ?office ?officeLabel 
WHERE {    
  ?country wdt:P31 wd:Q6256 .            # for all countries
  OPTIONAL {
    ?office wdt:P279* wd:Q2285706 ;        #   find any subclass of "head of government"
            wdt:P1001 ?country .           #   with that jurisdiction
  }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en" . }
}
ORDER BY ?countryLabel ?officeLabel

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v3("?country"):::projected v1("?countryLabel"):::projected v4("?office"):::projected v2("?officeLabel"):::projected c7(["bd:serviceParam"]):::iri c4(["wd:Q2285706"]):::iri c9(["en"]):::literal c2(["wd:Q6256"]):::iri v3 --"wdt:P31"--> c2 subgraph optional0["(optional)"] style optional0 fill:#bbf,stroke-dasharray: 5 5; v4 -."wdt:P279".-> c4 v4 --"wdt:P1001"--> v3 end subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c7 --"wikibase:language"--> c9 end