Dear Martin,
Thank you for your message and comments.
The sentence in question is not the happiest, and George and myself were
not totally satisfied with the wording but it was necessary to send the
homework to the SIG. We can of course reword it and a refomulation that
is certainly also not
Dear Francesco,
I find this text very well written and clear. My only question is, why:
" For facts which are established by convention as opposed to pure
spatio-temporal facts,"
I do not see ground in the CRMbase, and the methodology applied, to
regard that facts which are described in the
