I think as currently written this will result in the contents of $q being expressed as part of the schema:isbn RDFa, which would be an unfortunate side-effect.
Perhaps the isbn variable could be restructured to carry the isbn_id and isbn_qualifier separately?
I think as currently written this will result in the contents of $q being expressed as part of the schema:isbn RDFa, which would be an unfortunate side-effect.
Perhaps the isbn variable could be restructured to carry the isbn_id and isbn_qualifier separately?