query-63e8da6274e0148bc9b88764a962fe81

rq turtle/ttl

find items in a Wikipedia (sub-)category (and its subcategories) which do not have P31 or P279. MathematicsWikipedia category I want to find all pages in the

Use at

PREFIX mwapi: <http://wikiba.se/ontology#>
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX schema: <http://schema.org/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?item ?itemLabel WHERE {
 # MINUS { ?item (wdt:P31|wdt:P279) [] } .                               #shows only items without P31 or P279
 # [] schema:about ?item ; schema:isPartOf <https://en.wikipedia.org/> . #shows only items without P31 or P279
  SERVICE wikibase:mwapi {
     bd:serviceParam wikibase:endpoint "en.wikipedia.org";
                     wikibase:api "Generator";
                     mwapi:generator "categorymembers";
                     mwapi:gcmtitle "Category:Mathematics";
                     mwapi:gcmprop "ids|title|type";
                     mwapi:gcmlimit "max".
     ?item wikibase:apiOutputItem mwapi:item.
  } 
SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v1("?item"):::projected c16(["mwapi:item"]):::iri c14(["max"]):::literal c19(["en"]):::literal c8(["categorymembers"]):::literal c10(["Category:Mathematics"]):::literal c4(["en.wikipedia.org"]):::literal c2(["bd:serviceParam"]):::iri c12(["ids|title|type"]):::literal c6(["Generator"]):::literal subgraph s1["http://wikiba.se/ontology#mwapi"] style s1 stroke-width:4px; c2 --"mwapi:endpoint"--> c4 c2 --"mwapi:api"--> c6 c2 --"mwapi:generator"--> c8 c2 --"mwapi:gcmtitle"--> c10 c2 --"mwapi:gcmprop"--> c12 c2 --"mwapi:gcmlimit"--> c14 v1 --"mwapi:apiOutputItem"--> c16 end subgraph s2["http://wikiba.se/ontology#label"] style s2 stroke-width:4px; c2 --"mwapi:language"--> c19 end