Owl 我不能将sh:lessThan与xsd:positiveInteger一起使用

我有以下小型本体，有两个类（“DataSubject”和“Minor”），一个属性的年龄从DataSubject到xsd:positiveInteger，还有一个个体（“John”，他是DataSubject，年龄等于20岁）

以下SHACL规则应将年龄低于16岁的所有数据主体标记为未成年人

rules:WhenDataSubjectIsMinor
  rdf:type sh:NodeShape ;
  sh:rule [
      rdf:type sh:TripleRule ;
      #IF: "the age of the Data Subject is lower than 16"
      sh:condition [
        sh:property [
          sh:path ontology:has-age;
          sh:lessThan "16"^^xsd:positiveInteger ;
        ] ;
      ] ;
      #THEN: "the Data Subject is marked as type Minor"
      sh:subject sh:this ;
      sh:predicate rdf:type;
      sh:object ontology:Minor ;
  ] ;
  sh:targetClass ontology:DataSubject ;
.

但是，下面的Java代码推断John是未成年人。。。但是约翰不是，他20岁了！当然，规则是不正确的，特别是指令“sh:lessThan”16^^xsd:positiveInteger；”

如何将数据类型属性与给定常量进行比较

提前谢谢

利维奥

---

sh:lessThan用于建立两种财产之间的关系，例如出生日期sh:lessThan结婚日期。你需要的是sh:maxExclusive

有关详细信息，请参见SHACL规范，例如

非常感谢！：-）现在我不清楚如何使用sh:lessThan，除非我们可以定义一些“内部方法”来比较类，类似于在Java中使用可比较的接口所做的，但是我将研究：-）再次感谢！利维奥

rules:WhenDataSubjectIsMinor
  rdf:type sh:NodeShape ;
  sh:rule [
      rdf:type sh:TripleRule ;
      #IF: "the age of the Data Subject is lower than 16"
      sh:condition [
        sh:property [
          sh:path ontology:has-age;
          sh:lessThan "16"^^xsd:positiveInteger ;
        ] ;
      ] ;
      #THEN: "the Data Subject is marked as type Minor"
      sh:subject sh:this ;
      sh:predicate rdf:type;
      sh:object ontology:Minor ;
  ] ;
  sh:targetClass ontology:DataSubject ;
.

    public static void main(String[] args) throws Exception
    {
            //Load the ontology
        Model ontology = JenaUtil.createMemoryModel();
        FileInputStream fisOntology = new FileInputStream("./ontology.ttl");
        ontology.read(fisOntology, "urn:dummy", FileUtils.langTurtle);
        
            //Load the rules
        Model rules = JenaUtil.createMemoryModel();
        FileInputStream fisRules = new FileInputStream("./rules.ttl");
        rules.read(fisRules, "urn:dummy", FileUtils.langTurtle);
        
            //Executing the rule and print
        Model inferredTriples = RuleUtil.executeRules(ontology, rules, null, null);
        System.out.println(ModelPrinter.get().print(inferredTriples));
    }