<A  HREF="mailto:Matthew.R.West@IS.shell.com">mailto:Matthew.R.West@IS.shell.com</A>]
&gt; Sent:	Friday, January 12, 2001 5:02 AM
&gt; To:	Horn, Graham; 'pat hayes'
&gt; Cc:	standard-upper-ontology@majordomo.ieee.org
&gt; Subject:	RE: SUO: RE: Re: More KIF-ified Ontology Content
&gt; 
&gt; 
&gt; Dear Graham,
&gt; 
&gt; I take it you mean a relation that lasts for some time?
&gt; From a 4D perspective this would be analysed as (for friendship):
&gt; Person 1 has a friend-of state S1
&gt; Person 2 has a frien