query-8c8caf73ef7d0965d4a12672994a5c7d

rq turtle/ttl

All relatives of person with wikidata entryI'm trying to write a wikidata SPARQL query to return all descendents and antecedents of a person with wikidata entry. Various queries with different people return plausible results. ), the second result is footballer Zlatan Ibrahimović. https://w.wiki/6QHzHowever, when I run the same query with Winston Churchill (order date of birth descending - Now I doubt the query is sane.

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 ?relative ?relativeLabel ?dob WHERE {
    {
        wd:Q336089 (wdt:P40/(wdt:P1038*)) ?relative.
        OPTIONAL { ?relative wdt:P569 ?dob. }
    }
    UNION
    {
        wd:Q336089 ((wdt:P22|wdt:P25)*) ?relative.
        OPTIONAL { ?relative wdt:P569 ?dob. }
    }
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
    }
    ORDER BY DESC (?dob)

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v1("?dob"):::projected v2("?relative"):::projected a1((" ")) c8(["bd:serviceParam"]):::iri c1(["wd:Q336089"]):::iri c10(["en"]):::literal subgraph union0[" Union "] subgraph union0l[" "] style union0l fill:#abf,stroke-dasharray: 3 3; subgraph union1[" Union "] subgraph union1l[" "] style union1l fill:#abf,stroke-dasharray: 3 3; c1 --"wdt:P25"--> v2 end subgraph union1r[" "] style union1r fill:#abf,stroke-dasharray: 3 3; c1 --"wdt:P22"--> v2 end union1r <== or ==> union1l end subgraph optional0["(optional)"] style optional0 fill:#bbf,stroke-dasharray: 5 5; v2 -."wdt:P569".-> v1 end end subgraph union0r[" "] style union0r fill:#abf,stroke-dasharray: 3 3; c1 --"wdt:P40"--> a1 a1 --"wdt:P1038"--> v2 subgraph optional1["(optional)"] style optional1 fill:#bbf,stroke-dasharray: 5 5; v2 -."wdt:P569".-> v1 end end union0r <== or ==> union0l end subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c8 --"wikibase:language"--> c10 end