Add gndo:variantNameEntityForTheSubjectHeading

[acka47]

The DNB recently announced changes to the RDF at https://wiki.dnb.de/x/sjkZGg.

New feature:
In future, notes will be issued whenever variant names are provided for subject headings.
These notes may include remarks on discriminatory terms, quasi-synonyms or previous designations.
In addition to gndo:variantNameForTheSubjectHeading, a blank node titled gndo:variantNameEntityForTheSubjectHeading will be delivered for this purpose.
This will contain the variant name as gndo:variantNameForTheSubjectHeading and the respective note as a
dcterms:description.

Example in Turtle:

gndo:preferredNameForTheSubjectHeading "Rasse“ ;
gndo:variantNameForTheSubjectHeading "Rassifizierung" ;
gndo:variantNameForTheSubjectHeading "Menschenrassen" ;
gndo:variantNameEntityForTheSubjectHeading _:node1jhlg7bvrx9 ;
gndo:variantNameEntityForTheSubjectHeading _:node1jhlg7bvrx10 ;

_:node1jhlg7bvrx9 dcterms:description "(Diskriminierender Begriff, zu
Retrievalzwecken als Quasisynonym beibehalten)";
gndo:variantNameForTheSubjectHeading "Menschenrassen" .

_:node1jhlg7bvrx10 dcterms:description "(Quasisynonym)";
gndo:variantNameForTheSubjectHeading "Rassifizierung" .

Examples in the test file:
https://d-nb.info/gnd/4048440-3
https://d-nb.info/gnd/7560208-8
https://d-nb.info/gnd/1343148499
https://d-nb.info/gnd/1308455038
https://d-nb.info/gnd/4745700-4

For the example 4048440-3, the result could look like this:

{
  "@context" : "https://lobid.org/gnd/context.jsonld",
  "id" : "https://d-nb.info/gnd/4048440-3",
  "preferredName" : "Rasse",
  "variantNameEntity": [
    {
        "description": "(Diskriminierender Begriff, zu Retrievalzwecken als Quasisynonym beibehalten)",
        "variantName": "Menschenrassen" 
    },
        {
        "description": "(Quasisynonym)",
        "variantName": "Rassifizierung" 
    }  
  ]
}

However, I find it a bit strange that the property variantName is used on the variantNameEntity object because you could easily intepret it as "variant name of the variante name entity". I would be more happy if rdfs:label was used at this point. @thoffma, can you maybe say something about this choice?

[thoffma]

You`re right. rdfs:label suites better. We'll address this in the next release

[acka47]

@thoffma I talked about this with @fsteeg and we made another observation. As for #468 it would be great to have one data structure that allows us to uniformly process and display all variant names regardless whether there exists a note (delivered with dcterms:description) or not. Currently, only those variant names are delivered with variantNameEntityForTheSubjectHeading when a not exists. From the test file, example https://d-nb.info/gnd/7560208-8:

<https://d-nb.info/gnd/7560208-8>
  gndo:variantNameEntityForTheSubjectHeading _:node1jhlg7bvrx44224 .

_:node1jhlg7bvrx44224 dcterms:description "(B 2006 (online) unter Protestbewegungen)";
  gndo:variantNameForTheSubjectHeading "Globalisierungsgegner" .

<https://d-nb.info/gnd/7560208-8> gndo:variantNameForTheSubjectHeading "Globalisierungsgegner",
    "Protestbewegung gegen Globalisierung", "Globalisierungskritische Bewegung", "Globalisierung / Kritik / Protestbewegung" .

For downstream users like lobid to be able to easily and comfortably process the data, it would be great if also the other variant names under gndo:variantNameForTheSubjectHeading would get a gndo:variantNameEntityForTheSubjectHeading statement:

<https://d-nb.info/gnd/7560208-8>
  gndo:variantNameForTheSubjectHeading "Globalisierungsgegner",
    "Protestbewegung gegen Globalisierung", "Globalisierungskritische Bewegung", "Globalisierung / Kritik / Protestbewegung" ;
  gndo:variantNameEntityForTheSubjectHeading _:node1jhlg7bvrx44224 , _:bn2 , _:bn3 , _:bn4.

_:node1jhlg7bvrx44224 dcterms:description "(B 2006 (online) unter Protestbewegungen)";
  gndo:variantNameForTheSubjectHeading "Globalisierungsgegner" .

_;bn2 gndo:variantNameForTheSubjectHeading "Protestbewegung gegen Globalisierung" .

_;bn3 gndo:variantNameForTheSubjectHeading "Globalisierungskritische Bewegung" .

_;bn4 gndo:variantNameForTheSubjectHeading "Globalisierung / Kritik / Protestbewegung" .

Is this possible?