Dear DBpedia people,
Congratulations for your work and for your will to put some useful order in the
chaos of the internet.
I'm a beginner. I've been browsing your website at http://dbpedia.org and I
have a basic doubt.
In the file "dbpedia_3.9.owl" I can see the 529 class names and the 2,333
property names. All of them are like this: "http://dbpedia.org/ontology/*";
In the file "mappingbased_properties_en.nt" (3.4 GB) I have seen only 15
property names which are not "http://dbpedia.org/ontology/*":
1. <http://xmlns.com/foaf/0.1/familyName>
2. <http://www.w3.org/2003/01/geo/wgs84_pos#lat>
3. <http://xmlns.com/foaf/0.1/page>
4. <http://xmlns.com/foaf/0.1/thumbnail>
5. <http://www.w3.org/2003/01/geo/wgs84_pos#long>
6. <http://xmlns.com/foaf/0.1/name>
7. <http://xmlns.com/foaf/0.1/givenName>
8. <http://xmlns.com/foaf/0.1/homepage>
9. <http://www.georss.org/georss/point>
10. <http://xmlns.com/foaf/0.1/logo>
11. <http://purl.org/dc/elements/1.1/description>
12. <http://xmlns.com/foaf/0.1/depiction>
13. <http://xmlns.com/foaf/0.1/nick>
14. <http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
15. <http://www.w3.org/2004/02/skos/core#subject>
Nevertheless, if I send to http://dbpedia.org/sparql a query like this:
SELECT ?property ?value
WHERE {
{ <http://dbpedia.org/resource/Sagunto> ?property ?value }
}
then the result has many classes and properties which are not listed in
"dbpedia_3.9.owl" and are not used in "mappingbased_properties_en.nt". Some
examples:
Class names:
- http://schema.org/Place
- http://dbpedia.org/class/yago/Location100027167
Property names:
- http://dbpedia.org/property/settlementType
- http://www.w3.org/2003/01/geo/wgs84_pos#geometry
- http://www.w3.org/2000/01/rdf-schema#label
- http://www.w3.org/2000/01/rdf-schema#comment
My question is:
Where can I find a list of all the class names and property names which I can
expect to receive as a result of a query?
One thing I could do is get the datasets available for download (Persondata,
RawInfoboxProperties, etc) and make a list of all the different classes and
properties present in those datasets. Does that make sense? Perhaps it makes
sense for the properties, but what about the other class names?
Regards,
Juan
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