Obtenir la structure du graphe RDF par requête SPARQL

Question

Comment obtenir uniquement des triplets qui représentent la structure de graphe - hiérarchie de classe et de propriétés (c'est-à-dire sans individus, valeurs de propriété)?

Answer 1

Il semble que j'ai besoin de triplets rdf: type, owl: class et etc. Donc, c'est ma variante:

PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> 
PREFIX rdf:  <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 
PREFIX owl:  <http://www.w3.org/2002/07/owl#> 

select ?s ?p ?o 
where 
{ 
    { 
     graph <http://graph.org/gr> 
     {  
      ?s rdf:type ?o. 
      ?s ?p ?o. 
     } 
     FILTER 
      (?o IN (owl:Class, owl:DatatypeProperty, owl:AnnotationProperty, owl:ObjectProperty, owl:DataRange, owl:Ontology, 
      owl:DataRange,owl:DeprecatedClass,owl:DeprecatedProperty,owl:OntologyProperty,rdfs:Class,owl:Restriction,owl:InverseFunctionalProperty, 
      owl:FunctionalProperty,owl:AllDisjointClasses,rdf:Property, rdfs:Datatype) 
      ) 
} 
UNION 
{ 
     graph <http://graph.org/gr> 
     { 
      ?s ?p ?o. 
     } 
     FILTER 
      (?p IN (rdfs:subClassOf,rdfs:subPropertyOf,rdfs:domain,rdfs:range,rdfs:label,rdfs:comment,rdfs:member, 
      rdf:first,rdf:rest,owl:allValuesFrom,owl:someValuesFrom,owl:AnnotationProperty,owl:equivalentClass, 
      owl:equivalentProperty,owl:hasValue,owl:OntologyProperty,owl:SymmetricProperty,owl:TransitiveProperty, 
      owl:versionInfo,owl:priorVersion,owl:oneOf,owl:maxCardinality,owl:minCardinality,owl:inverseOf, 
      owl:incompatibleWith,owl:intersectionOf,owl:imports,owl:backwardCompatibleWith,owl:AllDifferent, 
      owl:differentFrom,owl:disjointWith,owl:distinctMembers,owl:complementOf,owl:cardinality,owl:unionOf,owl:onProperty)) 
     } 
}