query-0cefee607291775b47fde42c5931499f

rq turtle/ttl

any help is welcome, please be kind and explain to me the process, I'd like to get better at sparqling : ) 18:00, 10 June 2019 (UTC)) talk (Divudi85bye --tried this, but it doesn't print me out the ?start, the column is blank, don't understand why

Use at

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
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/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?human ?humanLabel ?start WHERE {
  ?human wdt:P31 wd:Q5;
    p:P27 [ps:P27 wd:Q38]
       OPTIONAL {?human pq:P580 ?start}

  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE]". }
}

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v1("?human"):::projected v2("?start"):::projected a1((" ")) c4(["wd:Q38"]):::iri c8(["bd:serviceParam"]):::iri c10(["#91;AUTO_LANGUAGE#93;"]):::literal c2(["wd:Q5"]):::iri v1 --"p:direct/P31"--> c2 a1 --"p:statement/P27"--> c4 v1 --"p:P27"--> a1 subgraph optional0["(optional)"] style optional0 fill:#bbf,stroke-dasharray: 5 5; v1 -."p:qualifier/P580".-> v2 end subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c8 --"wikibase:language"--> c10 end