# Relationship history for MSHA mine 0500005

Current hierarchy: **Judy  Sprague → Arkins Park Stone Corp → Berthoud Pink**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Judy  Sprague → Berthoud Pink; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Neil Sprague → Berthoud Pink; 1950-01-01 to 2003-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Neil  Sprague → Berthoud Pink; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Neil  Sprague → Neil Sprague; 1950-01-01 to 2003-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Arkins Park Stone Corp → Berthoud Pink; 2003-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Judy  Sprague → Arkins Park Stone Corp; 2003-09-01 to current/open; source msha-controller-operator-history