I now have a good perspective on the relation between the hierarchies.

1. SUMO is a good ontology.
begin hierarchy sumo;
Entity;
/ Abstract;
/ Physical;
end hierarchy sumo;

2. for epistemology, we want to focus on
primary existents = physical entities
characteristics (properties) of primary existents
propositions which relate existents and characteristics
-------
move characteristic & proposition from Abstract to existent
rename Entity to existent, Abstract to abstract
begin hierarchy epistemology;
existent;
/ abstract;
/ Physical;
/ characteristic;
/ proposition;
end hierarchy epistemology;

3. for tabula rasa, we identify fundamental types of characteristics
---------
add types
rename abstract to group, Physical to entity
begin hierarchy tabula rasa;
/ group; # abstract entity
/ entity; # physical entity
/ characteristic; # property
// part;
// attribute;
// relation;
// action;
// interaction;
/ proposition;
end hierarchy tabula rasa;

4. the genus-differentia definitions of the types are
part is characteristic with single entity, separable, not space, not time;
attribute is characteristic with single entity, not separable, not space,
not time;
relation is characteristic with multiple entity, not space, not time;
action is characteristic with single entity, space, time;
interaction is characteristic with multiple entity, space, time;

Dick McCullough
http://mKRmKE.org/
Ayn Rand do speak od mKR done;
knowledge := man do identify od existent done;
knowledge haspart proposition list;
mKE do enhance od "Real Intelligence" done;