I see two main options:
1) Get all instances of a metaclass :
SELECT ?class
WHERE {
?metaClass rdfs:subClassOf* rdfs:Class .
?class a ?metaClass .
}
2) Get all subclasses of the root class
SELECT ?class
WHERE {
?class rdfs:subClassOf* rdfs:Resource .
}
Regards,
Holger
On May 18, 2010, at 11:52 AM, aziza wrote:
> Hi!
> I have a question .
> How could I form a sparql query to get all classes from a class
> hierarchy (taxonomy)?
> Actually I want to view taxonomy in graph representation.
> Thanks.
>
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