Language tag standards (was Re: Using Rigid RDF ...)

> >>>        <Const><rdf:value xml:lang=3D"fr">chat</rdf:value><Const>
> >>>
> >>>    Again, this is just in the XML serialization; it doesn't change th=
> e
> >>>    presentation syntax or the semantics.
> 
> Same comment as above, plus: who/what determines the value of such
> attributes as xml:lang=3D"fr", and how? I mean, where does it come from
> since not from the syntax nor semantics?

This is covered in DTB in the section on rif:text, with a reference to
RFC-3066.

      -- Sandro