<?xml version="1.0"?>
<rdf:RDF
    xmlns="http://example.org/dummy#"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:owl="http://www.w3.org/2002/07/owl#"
    xml:base="http://example.org/dummy">
  <owl:Ontology rdf:about="">
  </owl:Ontology>
  <owl:Class rdf:ID="CLS1">
    <owl:equivalentClass>
      <owl:Class>
        <owl:unionOf rdf:parseType="Collection">
          <owl:Class rdf:about="#CLS2"/>
          <owl:Class rdf:about="#CLS3"/>
        </owl:unionOf>
      </owl:Class>
    </owl:equivalentClass>
  </owl:Class>
</rdf:RDF>
