query-a0ac6aaac79b1b0de420176aac4978ba

P428 but no P586

Use at

https://query.wikidata.org/sparql

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?item ?itemLabel
WHERE {
  ?item wdt:P428 ?a . #  botanist author abbreviation (P428)
  MINUS { ?item wdt:P586 ?b } # IPNI author ID (P586)
  SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}

Query found at

https://www.wikidata.org/wiki/User:Korg/queries

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v2("?a") v3("?b") v1("?item"):::projected c4(["bd:serviceParam"]):::iri c6(["en"]):::literal v1 --"wdt:P428"--> v2 subgraph minus0["MINUS"] style minus0 stroke-width:6px,fill:pink,stroke:red; v1 --"wdt:P586"--> v3 end subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c4 --"wikibase:language"--> c6 end