query-af2eaae8b3c034ed95b804f6d8417d2d

rq turtle/ttl

Search for genus & species items missing descriptionsHow can I get significantly more than a paltry 2000-3000 results from

Use at

https://query.wikidata.org/sparql

PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX schema: <http://schema.org/>
SELECT ?rank WHERE {
  ?rank wdt:P105 wd:Q34740. # Q37517=class; Q36602=order; Q35409=family; Q34740=genus; Q7432=species
  FILTER(NOT EXISTS {
    ?rank schema:description ?itemdesc.
    FILTER(LANG(?itemdesc) = "en") # with missing English description
  })
}

Query found at

https://www.wikidata.org/wiki/Wikidata:Request_a_query/Archive/2019/02

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v1("?itemdesc") v2("?rank"):::projected c4(["wd:Q34740"]):::iri f0[["not "]] subgraph f0e0["Exists Clause"] e0f0[["?itemdesc = 'en'"]] e0f0 --> e0v1 e0v2 --"schema:description"--> e0v1 e0v1("?itemdesc"):::projected e0v2("?rank"):::projected end f0--EXISTS--> f0e0 f0 --> v1 f0 --> v2 f0 --> c2 f1[["?itemdesc = 'en'"]] f1 --> v1 v2 --"schema:description"--> v1 v2 --"wdt:P105"--> c4