example: http://musicbrainz.org/artist/1b581a5d-8feb-4d61-8d3f-e87b1b0ab201/relationships

Appearances:

{additional:additionally}

composed
...

{additional:additionally}

remixed
...

{additional:additionally}

{assistant}

{associate}

{co:co-} {executive:executive }

produced
...

Expected:
composed
...
remixed
...
produced
...