> Why not add another element "pluralLabel" or just "plural"?
> Alternatively, one can add an attribute as in
> <skos:altLabel number="plural" >Supernovae</skos:altLabel >. More
> information at virtually no cost. There is nothing sacrosanct about
> the SKOS attributes.
Ed's suggestion sounds plausible. I wouldn't rate this as critical for the initial release, however. But IF folks don't see objections that my naive understanding has missed AND the cost of implementing support for plurals is modest AND higher priority issues don't intervene THEN we ought to consider enriching our vocabularies with some carefully chosen features such as this.
A few use cases for plurals might help. This could be a useful feature for user interfaces, for instance?
Per Ed's other suggestion, surely the interesting messages will all have Ont:+Vocab: anyway :-)