The BELONGS_TO edge links a child node to its parent in the hierarchy so that the organizational tree can be traversed and maintained within the graph.

**Key edges:**

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

- BELONGS_TO: Child → parent in hierarchy

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md

**Hierarchy nodes:** Company → Pillar → Group → BusinessUnit → VirtualBusinessUnit, CrossUnit

— PYRANA_PLATFORM_ARCHITECTURE_REFERENCE.md