PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
SELECT ?typeLabel (COUNT(?facility) AS ?count)
WHERE {
# relative to the <ns> endpoint this query runs on, so the app installs under any base URI:
# the endpoint resolves <ns#> to the namespace and <sparql> to the dataspace's own data
?type a owl:Class ;
rdfs:label ?typeLabel ;
rdfs:isDefinedBy <ns#>
SERVICE <sparql>
{
SELECT DISTINCT ?facility ?type WHERE {
GRAPH ?graph {
?facility a ?type .
}
}
}
}
GROUP BY ?type ?typeLabel
ORDER BY DESC(?count)