A set of SPARQL examples
Scholarly articles containing 'gene cluster' and found in taxon.
PREFIX mwapi: <https://www.mediawiki.org/ontology#API/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX bd: <http://www.bigdata.com/rdf#>
PREFIX pr: <http://www.wikidata.org/prop/reference/>
PREFIX prov: <http://www.w3.org/ns/prov#>
PREFIX hint: <http://www.bigdata.com/queryHints#>
#title: Scholarly articles containing 'gene cluster' (Q1501261) and NPs
SELECT DISTINCT ?article ?article_doi ?article_title WHERE {
SERVICE wikibase:mwapi {
bd:serviceParam wikibase:endpoint "www.wikidata.org";
wikibase:api "Search";
mwapi:srsearch "gene cluster haswbstatement:P31=Q13442814";
mwapi:srlimit "max".
?article wikibase:apiOutputItem mwapi:title.
}
SERVICE <https://query-scholarly.wikidata.org/sparql> {
?article wdt:P356 ?article_doi.
?article wdt:P1476 ?article_title.
}
?s (p:P703/prov:wasDerivedFrom/pr:P248) ?article. hint:Prior hint:rangeSafe TRUE.
?s p:P235 [].
}
graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
v1("?article"):::projected
v2("?article_doi"):::projected
v3("?article_title"):::projected
v4("?s")
a3((" "))
a1((" "))
a2((" "))
c4(["www.wikidata.org"]):::literal
c19([http://www.bigdata.com/queryHints#Prior]):::iri
c10(["max"]):::literal
c12([https://www.mediawiki.org/ontology#API/title]):::iri
c8(["gene cluster haswbstatement:P31=Q13442814"]):::literal
c2([http://www.bigdata.com/rdf#serviceParam]):::iri
c6(["Search"]):::literal
c21(["true^^xsd:boolean"]):::literal
subgraph s1["http://wikiba.se/ontology#mwapi"]
style s1 stroke-width:4px;
c2 --"wikibase:endpoint"--> c4
c2 --"wikibase:api"--> c6
c2 --https://www.mediawiki.org/ontology#API/srsearch--> c8
c2 --https://www.mediawiki.org/ontology#API/srlimit--> c10
v1 --"wikibase:apiOutputItem"--> c12
end
subgraph s2["https://query-scholarly.wikidata.org/sparql"]
style s2 stroke-width:4px;
v1 --"p:direct/P356"--> v2
v1 --"p:direct/P1476"--> v3
end
v4 --"p:P703"--> a1
a1 --"prov:wasDerivedFrom"--> a2
a2 --"p:reference/P248"--> v1
c19 --http://www.bigdata.com/queryHints#rangeSafe--> c21
v4 --"p:P235"--> a3