# Relationship history for MSHA mine 1517683

Current hierarchy: **Cynthia  Moore → Coal Augering Inc → Auger #5**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Cynthia  Moore → Auger #5; 1994-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Coal Augering Inc → Auger #5; 1995-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cynthia  Moore → Coal Augering Inc; 1995-06-01 to current/open; source msha-controller-operator-history