From: Program for Cooperative Cataloging [mailto:[log in to unmask]] On Behalf Of John Hostage
Sent: Thursday, September 08, 2016 10:51 AM
> I generally imagine a whispered “has” before the relationship designator.

Which is usually found in the linked data "records" for designators.  For instance, the Label property for the "founded corporate body of person" designator is "has founded corporate body of person," which adds a little more grammatical insight; see the second row here:

The implied "is", "has", "this", and so on was always a source of confusion among catalogers when I performed RDA training back in the day.

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