The base of the hierarchy is formed by the sense-objects.

These objects do not presuppose any other type of objects.

A sense-object is a factor of nature posited by sense-awareness which (i), in that it is an object, does not share in the passage of nature and (ii) is not a relation between other factors of nature.

It will of course be a relatum in relations which also implicate other factors of nature.

But it is always a relatum and never the relation itself.