@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#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

qudt:NominalScale a rdfs:Class,
        owl:Class,
        sh:NodeShape ;
    rdfs:label "Nominal scale" ;
    dcterms:description """
  A nominal scale differentiates between items or subjects based only on their names or (meta-)categories and other qualitative classifications they belong to;
   thus dichotomous data involves the construction of classifications as well as the classification of items. 
  Discovery of an exception to a classification can be viewed as progress. 
  Numbers may be used to represent the variables but the numbers do not have numerical value or relationship:
   for example, a Globally unique identifier. 
  Examples of these classifications include gender, nationality, ethnicity, language, genre, style, biological species, and form. 
  In a university one could also use hall of affiliation as an example.
  """^^rdf:HTML ;
    qudt:informativeReference "https://en.wikipedia.org/wiki/Level_of_measurement"^^xsd:anyURI ;
    rdfs:isDefinedBy <http://qudt.org/3.2.1/schema/qudt>,
        <http://qudt.org/3.2.1/schema/shacl/qudt> ;
    rdfs:seeAlso qudt:IntervalScale,
        qudt:OrdinalScale,
        qudt:RatioScale ;
    rdfs:subClassOf qudt:Scale .