&gt; (subclass-of Physical Entity)
&gt; &gt; (subclass-of Abstract Entity)
&gt; &gt; (subclass-of Continuant Entity)
&gt; &gt; (subclass-of Occurrent Entity)
&gt; &gt;
&gt; &gt; (subclass-of Actuality Independent)
&gt; &gt; (subclass-of Actuality Physical)
&gt; &gt; (subclass-of Form Independent)
&gt; &gt; (subclass-of Form Abstract)
&gt; &gt; (subclass-of Prehension Physical)
&gt; &gt; (subclass-of Prehension Relative)
&gt; &gt; (subclass-of Proposition Relative)
&gt; &gt; (subclass-of Proposition Abstract