How to query all properties of owl:Thing of dbpedia using SPARQL? - sparql

Question

When I use the following SPARQL query I get all properties of the DBpedia class Country:
select ?range ?domain ?prop ?label
Where{
?class rdfs:subClassOf{0,1} ?domain.
?prop rdfs:domain ?domain.
?prop rdfs:range ?range.
?prop rdfs:label ?label.
FILTER(lang(?label) = 'en')
FILTER(?class = <http://dbpedia.org/ontology/Country>)
}
When I try to do this with 'Thing' or 'OWL:Thing' or 'A Thing' or anything equivalent instead of Country, I get an empty result.
I want to adopt the ontology of DBpedia's owl:Thing, so I want to retrieve all properties of http://mappings.dbpedia.org/server/ontology/classes/owl%3AThing (including labela and range).
Does anyone know how I can achieve this?

Answer 1

There is not property in DBpedia with the domain owl:Thing:
select * {
?prop rdfs:domain owl:Thing
}
The reason for this is probably that if no explicit domain is given, owl:Thing is the trivial domain. You can check this also if you look at particular properties from your referred list, e.g. dbo:abbreviation
Workaround query:
SELECT ?range (owl:Thing as ?domain) ?prop ?label {
VALUES ?type {owl:DatatypeProperty owl:ObjectProperty}
?prop a ?type
OPTIONAL {?prop rdfs:range ?range }
?prop rdfs:label ?label.
FILTER(langmatches(lang(?label), 'en'))
FILTER NOT EXISTS {?prop rdfs:domain ?domain}
}