@prefix dc: .
@prefix dcterms: .
@prefix ex: .
@prefix idr: .
@prefix kv: .
@prefix obda: .
@prefix omecore: .
@prefix omekg: .
@prefix owl: .
@prefix rdf: .
@prefix rdfs: .
@prefix schema: .
@prefix sh: .
@prefix xml: .
@prefix xsd: .
ex:007 a sh:SPARQLExecutable, sh:SPARQLSelectExecutable ;
rdfs:comment "Image map annotation keys and usage counts"^^rdf:HTML ;
sh:prefixes _:sparql_example_prefixes ;
schema:keywords "image, mapAnnotation, key, unique, count" ;
schema:target ;
sh:select """
PREFIX owl:
PREFIX rdf:
PREFIX rdfs:
PREFIX dcterms:
PREFIX dc:
PREFIX omecore:
PREFIX omekg:
PREFIX obda:
PREFIX xml:
PREFIX xsd:
PREFIX kv:
PREFIX idr:
PREFIX up:
PREFIX skos:
SELECT ?key (COUNT(?value) AS ?n_usage)
WHERE {
?img a omecore:Image;
omecore:hasAnnotation/omecore:mapEntry [
omecore:key ?key;
omecore:value ?value
] .
}
GROUP BY ?key
ORDER BY DESC(?n_usage)
""" .