Added a CiTO example (Wikidata)

examples/Wikidata - CiTO/001.ttl

@@ -0,0 +1,32 @@
+@prefix ex: <https://bigcat-um.github.io/sparql-examples/WikiPathways/> .
+@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+@prefix schema: <https://schema.org/> .
+@prefix sh: <http://www.w3.org/ns/shacl#> .
+
+ex:001 a sh:SPARQLExecutable,
+       sh:SPARQLSelectExecutable ;
+    rdfs:comment "Lists journals that have CiTO citation intentions defined and returns the number of citation statements as well as the number of citing articles."@en ;
+    sh:prefixes _:sparql_examples_prefixes ;
+    sh:select """PREFIX wd: <https://compoundcloud.wikibase.cloud/entity/>
+PREFIX wdt: <https://compoundcloud.wikibase.cloud/prop/direct/>
+PREFIX wikibase: <http://wikiba.se/ontology#>
+PREFIX bd: <http://www.bigdata.com/rdf#>
+PREFIX rdfs: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
+PREFIX p: <http://www.wikidata.org/prop/>
+PREFIX ps: <http://www.wikidata.org/prop/statement/>
+PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
+
+SELECT ?journal ?journalLabel (CONCAT("/venue/", SUBSTR(STR(?journal), 32), "#cito") AS ?journalUrl)
+(COUNT(DISTINCT ?citationStatement) AS ?citations) 
+(COUNT(DISTINCT ?citingArticle) AS ?articles) WHERE {
+  ?citingArticle p:P2860 ?citationStatement ;
+                 wdt:P1433 ?journal .
+  ?citationStatement pq:P3712 ?intention ;
+                     ps:P2860 ?citedArticle .
+  ?intention wdt:P31 wd:Q96471816 .
+  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],mul,en". }
+} GROUP BY ?journal ?journalLabel
+  ORDER BY DESC(?citations)""" ;
+    schema:target <https://query.wikidata.org/sparql> ;
+    schema:keywords "journal", "CiTO", "citation" .

examples/Wikidata - CiTO/prefixes.ttl

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+@prefix sh: <http://www.w3.org/ns/shacl#> .
+@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+@prefix owl: <http://www.w3.org/2002/07/owl#> .
+@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
+
+_:vhp4safety_sparql_examples_prefixes a owl:Ontology ;
+  rdfs:comment """This is a collection of Wikidata SPARQL prefixes that are needed for the examples for use on different websites.""" ;
+  owl:imports sh: ;
+  sh:declare [ sh:prefix "wd"  ; sh:namespace "http://wikidata.org/entity/"^^xsd:anyURI ] ;
+  sh:declare [ sh:prefix "wdt" ; sh:namespace "http://wikidata.org/prop/direct/"^^xsd:anyURI ] ;
+  sh:declare [ sh:prefix "wikibase" ; sh:namespace "http://wikiba.se/ontology#"^^xsd:anyURI ] ;
+  sh:declare [ sh:prefix "bd" ; sh:namespace "http://www.bigdata.com/rdf#"^^xsd:anyURI ] ;
+  sh:declare [ sh:prefix "rdfs" ; sh:namespace "http://www.w3.org/1999/02/22-rdf-syntax-ns#"^^xsd:anyURI ] .