# Relationship history for MSHA mine 3402235

Current hierarchy: **Danny  Ratliff → Quality Stone Quarries, LLC. → QSQ # 5/ Parker # 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:** Danny  Ratliff et al → QSQ # 5/ Parker # 5; 2011-06-01 to 2017-06-21; source msha-controller-operator-history
- **controller_controls_mine:** Danny  Ratliff → QSQ # 5/ Parker # 5; 2017-06-22 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Quality Stone Quarries, LLC. → QSQ # 5/ Parker # 5; 2023-10-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Danny  Ratliff et al → Quality Stone Quarries, LLC.; 2023-10-12 to 2017-06-21; source msha-controller-operator-history
- **controller_controls_operator:** Johnan  Ratliff et al → Quality Stone Quarries, LLC.; 2023-10-12 to 2017-06-21; source msha-controller-operator-history
- **controller_controls_operator:** Danny  Ratliff → Quality Stone Quarries, LLC.; 2023-10-12 to current/open; source msha-controller-operator-history