any detailed suggestions along these lines.

&gt;It does seem that language has this distinction - and so for modeling
&gt;language it may be useful. What is less clear to me, is whether the
&gt;distinction is practically useful when dealing with things outside
&gt;ourselves. When would a process engineer working on oil rigs - or a
&gt;biologist classifying animals make use of this distinction. In my analysis,
&gt;I have not come across any examples of this. For me, this seems to indicate
&gt;that for types