For a label such as http://musicbrainz.org/label/7344d9ac-3dcf-4efc-8359-c0ed7c63a2fd/relationships , this would be especially helpful:
Label Foo distributes for label Bar in Spain, France, and Germany.
Label Foo distributes for label Bar in Asia, Australia, and New Zealand.
Label Foo is the Canadian subsidiary of label Bar.
Label Bar has Canadian subsidiary label Foo.
It'd help to make the distributor and subsidiary ARs more granular and useful, rather than just lumping them all together without any way to see if that's a global distributor/subsidiary, a regional one, or one specific to a particular country or set of countries.