如何使用 SPARQL 构建 owl:Restriction

Question

我正在尝试对 ontology 中的某些实例创建 OWL 限制。这些实例通过 rdf:type 关系关联到类，而它们应该是某种 owl 限制。为了解决这个问题，我创建了一个 CONSTRUCT 语句：

PREFIX myontology:<http://myontology.org/myonto/>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
CONSTRUCT {
  ?entity rdf:type ?owlRestriction .
  ?owlRestriction a owl:Restriction .
  ?owlRestriction owl:onProperty myontology:someRelation .
  ?owlRestriction owl:someValuesFrom ?someClass .
}

WHERE {
  ?owlRestriction a owl:Restriction .
  ?entity a ?class .
  ?class rdfs:subClassOf* myontology:someSuperClass .
}

当我运行但是，创建的限制包括 myontology:someSuperClass 下的每个子类。我如何更改上述查询，以便只有通过 rdf:type 与我的实例直接相关的类更改为限制？

感谢您的帮助！

Answer 1

此 CONSTRUCT 查询适当地创建了 owl:Restriction 关系：

PREFIX myontology:<http://myontology.org/myonto/>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
CONSTRUCT {
  ?entity a [rdf:type owl:Restriction ;
           owl:onProperties myontology:myrelation;
           owl:someValuesFrom ?class] .
  
}

WHERE {
  ?entity a ?class .
  ?class rdfs:subClassOf* myontology:someSuperClass .
}

如何使用 SPARQL 构建 owl:Restriction

How to use SPARQL to CONSTRUCT owl:Restriction

rdf

owl

sparql