@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sh: <http://www.w3.org/ns/shacl#> .

qudt:DataItem a rdfs:Class,
        owl:Class,
        sh:NodeShape ;
    rdfs:label "Data Item" ;
    dcterms:description """
  <p>A <em>Data Item</em> holds a value that maybe a scalar or structured datatype.
  <em>Quantity Value</em> specifies which case applies.
  </p>"""^^rdf:HTML ;
    rdfs:isDefinedBy <http://qudt.org/3.2.1/schema/qudt>,
        <http://qudt.org/3.2.1/schema/shacl/qudt> ;
    rdfs:subClassOf qudt:Concept ;
    sh:property qudt:DataItem-value .