Not all things exist the same way. Substances, properties, relations, events, abstractions — Jachin's ontological engine distinguishes them all, because reasoning that conflates existence categories produces hallucinations.
Primary beings that exist independently. A student, a hospital, a text. The anchors of all predication and reasoning.
What things are like and how they connect. Dependent on substances — cannot exist alone. The predicative layer of intelligence.
Processes that unfold in time and structures that exist outside it. The dynamic and formal layers where reasoning about change and universals operates.