# Relationship history for MSHA mine 2103991

Current hierarchy: **Rachael Rani  Frauendienst → Rachael Aggregates → Rachael Aggregates**

- 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

- **operator_operates_mine:** Circle F Farms → Rachael Aggregates; 2020-12-09 to 2021-03-09; source msha-controller-operator-history
- **controller_controls_mine:** Darrel E Frauendienst Et Al → Rachael Aggregates; 2020-12-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Darrel E Frauendienst Et Al → Circle F Farms; 2020-12-09 to 2021-03-09; source msha-controller-operator-history
- **controller_controls_operator:** Rachel R Frauendienst Et Al → Circle F Farms; 2020-12-09 to 2021-03-09; source msha-controller-operator-history
- **operator_operates_mine:** Rachael Aggregates → Rachael Aggregates; 2021-03-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rachael Rani  Frauendienst → Rachael Aggregates; 2021-03-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rachael Rani  Frauendienst → Rachael Aggregates; 2021-03-10 to current/open; source msha-controller-operator-history