duplicating restrictions when loading gleif ontology

[Luis Enrique Ramos García]

Dear All,

When I import the gleif ontology into top braid composer, it seems to duplicate the restrictions, ans shown in the attached picture.

I double checked the code, and could confirm that effectively the code of these restrictions is duplicated as in the example:

rdfs:subClassOf [
      a owl:Restriction ;
      owl:maxQualifiedCardinality 1 ;
      owl:onClass gleif-base:EntityExpirationReason ;
      owl:onProperty gleif-base:hasEntityExpirationReason ;
    ] ;
  rdfs:subClassOf [
      a owl:Restriction ;
      owl:maxQualifiedCardinality 1 ;
      owl:onClass gleif-base:EntityExpirationReason ;
      owl:onProperty gleif-base:hasEntityExpirationReason ;
    ] ;

Thus, I wonder what could be the reason of this behavior?.

Moreover,  the tool reports again:

[Malformed OWL: Malformed OWL restriction]

Best regards

Luis Ramos

[Holger Knublauch]

Are some of those restrictions marked as owl:imported? Maybe there is confusion about the base URIs and it has cyclic imports so that it reimports itself again but then from the web? Blank nodes will just add up.

Which owl:Restriction in particular is malformed? I just did a very brief look and saw that it has owl:maxCardinality "1" which is incorrect as those must be numbers not strings.

Holger

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<gleif issues.pptx>

[Luis Enrique Ramos García]

Well,

Checking the code, I do not find any import declaration in the definition of Entity, and for instance the restriction hasEntityExpirationDate has the following code:

<rdfs:subClassOf>
            <owl:Restriction>
                <owl:onProperty rdf:resource="https://www.gleif.org/ontology/Base/hasEntityExpirationDate"/>
                <owl:maxQualifiedCardinality rdf:datatype="http://www.w3.org/2001/XMLSchema#nonNegativeInteger">1</owl:maxQualifiedCardinality>
                <owl:onDataRange rdf:resource="http://www.w3.org/2001/XMLSchema#dateTime"/>
            </owl:Restriction>
        </rdfs:subClassOf>

I downloaded the ontology directly from here:

https://www.gleif.org/ontology/v1.0/Base/ontology.ttl

Luis

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[Holger Knublauch]

I have no explanation why there would be duplicate restrictions. In general, if you import or add a Turtle file twice, all blank nodes will be duplicated. Maybe the file was imported twice. That's all I can say from the distance.

Holger

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