# Relationship history for MSHA mine 1517773

Current hierarchy: **Phoenix Coal Corporation → R & L Winn Mining → Cleopatra**

- 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:** Randall G  Winn et al → Cleopatra; 1989-05-01 to 2006-07-05; source msha-controller-operator-history
- **operator_operates_mine:** R & L Winn Mining → Cleopatra; 1996-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randall G  Winn et al → R & L Winn Mining; 1996-04-01 to 2006-07-05; source msha-controller-operator-history
- **controller_controls_operator:** Linda A  Winn et al → R & L Winn Mining; 1996-04-01 to 2006-07-05; source msha-controller-operator-history
- **controller_controls_mine:** Phoenix Coal Corporation → Cleopatra; 2006-07-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Phoenix Coal Corporation → R & L Winn Mining; 2006-07-06 to current/open; source msha-controller-operator-history