# Relationship history for MSHA mine 4703136

Current hierarchy: **Cheri  Flannery → Flannery Trucking, Inc. → Wash 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

- **controller_controls_mine:** Cheri  Flannery et al → Wash Plant; 1994-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Flannery Trucking,INC → Wash Plant; 1998-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cheri  Flannery et al → Flannery Trucking,INC; 1998-05-01 to current/open; source msha-controller-operator-history