# Relationship history for MSHA mine 0600710

Current hierarchy: **WARREN E  LUCIANI → Advanced Paving & Excavation → Portable Plant**

- 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:** Advanced Paving & Excavation → Portable Plant; 2003-01-30 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** WARREN E  LUCIANI → Portable Plant; 2003-01-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** WARREN E  LUCIANI → Advanced Paving & Excavation; 2003-01-30 to current/open; source msha-controller-operator-history