r idea of what these
&gt; things are, how you can refer to them in logic, how they are
&gt; classifiable by the ontology (Note: classifiable is a
&gt; prerequisite to being classified), and how they relate to
&gt; what is in the world, what is perceived by humans, animals,
&gt; or robots, how evidence for them is obtained, etc. 
&gt; 
&gt; Only after these questions are answered, does it become
&gt; possible to say where you can position the categories in
&gt; the hierarchy, outline, or whatever you want to