is that right?  let's say I've got a card called "favorite fruit" and its content is "[[mango]], [[apple]]".  in that case isn't the situation that :card is "favorite fruit" (the referer) and mango and apple are the reference_names (referees)?

I could see still calling it :card, since that's attached to the chunk, and not all chunks are references.

I'm not quite clear on how all this works yet; forgive me if I'm being thick.