rpretation of most ERD diagramming
conventions each graphic element coresponds with something at the type
level.  This a typical context in which this is so obvious, that nobody
bothers to qualify the word relationship (or the word entity) with the word
type.  So ERD always has meant "entity type - relationship type diagram",
but we did not bother to say so, and I suggest can still leave it implied by
the context..

GH&gt;  I understand perfectly where you are coming from. However, It is pretty
well exactly