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Test Id WebOnt-I5.26-007
Description The blank nodes in a class description in OWL DL may not form a directed cycle.
Status Proposed (2009-01-06)
Author Jeremy J. Carroll
Original syntax RDF-XML
Syntactic Species/Profile OWL 2 Full (EL profile assertion missing, QL profile assertion missing, RL profile assertion missing)
Semantics This test is applicable under the RDF-based semantics. It should not be considered under the direct semantics because it does not satisfy the syntactic constraints of OWL 2 DL.
WebOnt test http://www.w3.org/2002/03owlt/I5.26/Manifest007#test
Consistent ontology (download)

Convert syntax: functional, XML, Manchester      This informative conversion will be incorrect for OWL 2 Full. info.pngConversions are provided by the OWL Syntax Converter which tries to "repair" OWL 2 Full inputs to become DL.
Open in RDF Validator

    xml:base="http://www.w3.org/2002/03owlt/I5.26/consistent007" >
    <owl:Class rdf:nodeID="B">
      <owl:intersectionOf rdf:parseType="Collection">
        <owl:Class rdf:ID="B"/>
           <owl:unionOf rdf:parseType="Collection">
              <rdf:Description rdf:nodeID="B"/>
              <owl:Class rdf:ID="C"/>
       <rdf:type rdf:nodeID="B"/>

Imported ontologies none
OWL 2 Informative
OWL 2 Normative