# Relationship history for MSHA mine 4703808

Current hierarchy: **Terry  Kitchner → Terry Kitchner → Kitchner Pit**

- 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

- **operator_operates_mine:** Terry Kitchner → Kitchner Pit; 2017-08-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Terry  Kitchner → Kitchner Pit; 2017-08-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Terry  Kitchner → Terry Kitchner; 2017-08-30 to current/open; source msha-controller-operator-history