使用OWL API在OWL本體上編寫OWLObjectPropertyExpression

Question

我正在嘗試在OWL本體對象上編寫OWLObjectPropertyExpression。 如果我有OWL類，則使用類似以下的內容：

 OWLOntologyManager managerWriter = OWLManager.createOWLOntologyManager();
 OWLOntology ontoWrite=managerWriter.createOntology();
 OWLDataFactory factory = manager.getOWLDataFactory();
 managerWriter.addAxiom(ontoWrite,factory.getOWLDeclarationAxiom(factory.getOWLClass((cl.getIRI()))));

但是，如果我想編寫OWLObjectPropertyExpression，應該怎么寫？ 提前致謝 ！。

Answer 1

以下代碼段說明了使用OWL API（從此處獲取和改編）來使用和創建OWL表達式的示例：

//OWL Expression we would like to create:
//in OWL Functional syntax: ObjectIntersectionOf(A ObjectSomeValuesFrom(R B))
//in Manchester syntax: A and R some B
PrefixManager pm = new DefaultPrefixManager("http://example.org/");
OWLClass A = factory.getOWLClass(":A", pm);
OWLObjectProperty R = factory.getOWLObjectProperty(":R", pm);
OWLClass B = factory.getOWLClass(":B", pm);

//The expression
OWLClassExpression expression = 
  factory.getOWLObjectIntersectionOf(A, factory.getOWLObjectSomeValuesFrom(R, B));

//Create a class in order to use the expression
OWLClass C = factory.getOWLClass(":C", pm);

// Declare an equivalentClass axiom
//Just there to show how an example on how to use the expression
OWLAxiom definition = factory.getOWLEquivalentClassesAxiom(C, expression);
manager.addAxiom(ontology, definition);