Proposal for relations.sourceLabels

[docuracy]

PROPOSAL: Add optional sourceLabels to the relations properties (as already specified for feature types).

Outlined in LP.json.

[rybesh]

I'm not clear on what a "source label" is. I would be inclined to follow SKOS here and use

• prefLabel for the single (per language) preferred label for display
• altLabel for multiple alternative labels for display
• hiddenLabel for additional labels that can be searched over but should not be displayed

[docuracy]

My understanding is that this property provides a means for recording an item's real-world label in situations where that label does not exactly match the label provided by the vocabulary item to which it is reconciled. Does SKOS have a way to deal with that?

[rybesh]

I'm still not totally clear on the use case, but I see a couple of options:

1. sourceLabel could be defined as a subproperty of altLabel so that SKOS-aware tools could still work with it.
2. SKOS-XL provides classes and predicates for reifying labels so that they can be used as the subjects of triples, e.g. for specifying provenance or asserting relationships between different labels.