# Relationship history for MSHA mine 4702887

Current hierarchy: **Terry  Phillips → Terry Phillips Trucking → Terry Phillips**

- 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:** Elmer Phillips → Terry Phillips; 1989-06-01 to 1992-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Elmer  Phillips → Terry Phillips; 1989-06-01 to 1992-12-31; source msha-controller-operator-history
- **controller_controls_operator:** Elmer  Phillips → Elmer Phillips; 1989-06-01 to 1992-12-31; source msha-controller-operator-history
- **operator_operates_mine:** Terry Phillips Trucking → Terry Phillips; 1993-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Terry  Phillips → Terry Phillips; 1993-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Terry  Phillips → Terry Phillips Trucking; 1993-01-01 to current/open; source msha-controller-operator-history