query-57bb9fc14f8fa8856b76b1402e30e40a

Propertiesauthor (P50)main subject (P921)author name string (P2093)

Use at

https://query.wikidata.org/sparql

PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
SELECT (COUNT(DISTINCT ?item) AS ?count) WHERE {
  ?item wdt:P50 ?author;
        wdt:P921 wd:Q202864.
  MINUS {?item wdt:P2093 []}
}

Query found at

https://www.wikidata.org/wiki/Wikidata:WikiProject_Zika_Corpus/Queries

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v2("?author") v3("?count") v1("?item"):::projected a1((" ")) c3(["wd:Q202864"]):::iri v1 --"wdt:P50"--> v2 v1 --"wdt:P921"--> c3 subgraph minus0["MINUS"] style minus0 stroke-width:6px,fill:pink,stroke:red; v1 --"wdt:P2093"--> a1 end bind2[/"count(?item)"/] v1 --o bind2 bind2 --as--o v3