CODEWITHSUNDEEP
validationontologyknowledge-graphshacl
Matthias Jung
Matthias Jung

Reputation: 11

Using SHACL to validate if one specific language tag is present in repeated annotation properties

we would like to specify for our ontology, that each class must at least have a skos:definition in English, but translations (also described as skos:definition with a different language tag) are welcome. I would like to specify a SHACL-Shape to check if that condition is met.

A simple valid example of a class definition:

ex:ExampleClass a owl:Class ;
  skos:definition "An example Class"@en, "Eine Beispielklasse"@de .

The only thing I found which seemed helpful in that area is sh:languageIn. Unfortunately, as I understand it, it only checks if all language tags are part of a given set.

ex:Pattern1 a sh:NodeShape ;
  sh:targetClass owl:Class ;
  sh:property [
    sh:path skos:definition ;
    sh:datatype rdf:langString ;
    sh:languageIn (
      "en"
    ) ;
  ] .

Unfortunately, stackoverflows spam filter seems to hinder me from posting the ttl blocks with prefixes. Therefore, I provide that in a gist: https://gist.github.com/MattTJung/8739566f550c85d9ab3c862267a7675b

How can I alter this, to make sure there is at least one occurence of @en, but still allow for other language tags?

Upvotes: 1

Views: 101

Answers (1)

Matthias Jung
Matthias Jung

Reputation: 11

The hint given by @HolgerKnublauch pushed me on the right path, thank you.

ex:Pattern1 a sh:NodeShape ;
    sh:targetClass owl:Class ;
    sh:property [
      sh:path skos:definition ;
      sh:qualifiedMinCount 1;
      sh:qualifiedValueShape [
        sh:datatype rdf:langString ;
        sh:languageIn ( "en" ) ;
      ] ;
    ] .

Upvotes: 0

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