[ CCode ( cname = "GST_TAG_GEO_LOCATION_SUBLOCATION" ) ]
public const string GEO_LOCATION_SUBLOCATION
A location 'smaller' than GST_TAG_GEO_LOCATION_CITY that specifies better where the media has been produced.
(e.g. the neighborhood) (string).
This tag has been added as this is how it is handled/named in XMP's Iptc4xmpcore schema.