constraining multilingual attributes

[pchampin]

During a workshop on Distrbuted Knowledge Graph metadata, the need emerged to constrain a property to contain:

• one-to-many language tagged strings, but
• at most one value per language tag.

Therefore this would be allowed

<> dct:description "My Knowledge Graph"@en, "Mon graphe de connaissances"@fr.

would be valid, but

<> dct:description "My Knowledge Graph"@en, "My KG"@en.

would not.

Is it possible to express that kind of constraint using SHACL?

[afs]

sh:uniqueLang

[pchampin]

thanks. Don't know why I didn't spot that...