 this sort of assumed obviousness that led to this thread. What
we need to come up with for the SUO standard, as with any international
standard, is language that says EVERYTHING explicitly (or refers the reader
to another standard, or possibly other reference document, that does).

MK&gt;&gt; I agree a formal SUO must not use a term to mean two different things.
Therefore if we choose to define Relationship as an SUO term, we must choose
a particular meaning for it.  I would like this meaning to be "in the