query-1720925f6717f51a2583d40504668710

rq turtle/ttl

Optimization?Could the following query be optimized to not time out?

Use at

PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX bd: <http://www.bigdata.com/rdf#>
SELECT ?item ?itemLabel (GROUP_CONCAT(?p31Label; separator="; ") as ?p31s)
WHERE {
    ?item wdt:P830 [] .
    OPTIONAL { ?item wdt:P31 ?p31 }
    MINUS { ?item wdt:P31 wd:Q16521 . }
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
} 
GROUP BY ?item ?itemLabel
ORDER BY ?itemLabel

Query found at

graph TD classDef projected fill:lightgreen; classDef literal fill:orange; classDef iri fill:yellow; v2("?item"):::projected v1("?itemLabel"):::projected v3("?p31") v4("?p31Label"):::projected v5("?p31s") a1((" ")) c5(["bd:serviceParam"]):::iri c7(["en"]):::literal c3(["wd:Q16521"]):::iri v2 --"wdt:P830"--> a1 subgraph optional0["(optional)"] style optional0 fill:#bbf,stroke-dasharray: 5 5; v2 -."wdt:P31".-> v3 end subgraph minus0["MINUS"] style minus0 stroke-width:6px,fill:pink,stroke:red; v2 --"wdt:P31"--> c3 end subgraph s1["http://wikiba.se/ontology#label"] style s1 stroke-width:4px; c5 --"wikibase:language"--> c7 end bind2[/"?p31Label"/] v4 --o bind2 bind2 --as--o v5