query-31d61d01b950f1b0822869baa156be45

rq turtle/ttl

Levana Taylor

Use at

PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX schema: <http://schema.org/>
SELECT DISTINCT ?item ?wikisource
WHERE
{
  ?item wdt:P31 wd:Q5. # ?item is human

  ?item wdt:P18 ?image1 .
  ?item wdt:P18 ?image2 .
  FILTER (?image1 != ?image2) # First filter: Comparing the IRIs is fastest
  FILTER (STR(?image1) < STR(?image2)) # Second filter: Convert to string to the halve the result set

  ?wikisource schema:about ?item.
  ?wikisource schema:isPartOf <https://en.wikisource.org/>.
}

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v1("?image1") v2("?image2") v3("?item"):::projected v4("?wikisource"):::projected c2(["wd:Q5"]):::iri c6([https://en.wikisource.org/]):::iri f0[["str(?image1) < str(?image2)"]] f0 --> v1 f0 --> v2 f1[["?image1 != ?image2"]] f1 --> v1 f1 --> v2 v3 --"wdt:P31"--> c2 v3 --"wdt:P18"--> v1 v3 --"wdt:P18"--> v2 v4 --"schema:about"--> v3 v4 --"schema:isPartOf"--> c6