enough that thye might include everything, but equally they might not.
This is why I offered some alternative classifications, which, despite Pat
and John's initial comments, I think can encompass everything - even
emotions etc. I will ask some questions to try to clarify what you mean, and
explain what I see as the ambiguity.

GH2&gt;	Maybe it is the fact that I come from an engineering perspective,
and possibly have a different frame of reference. 

&gt; &gt; 	.	From it I take it that there are three kind