# Relationship history for MSHA mine 0103220

Current hierarchy: **Marc B  Tyson; Paul W  Bryant Jr → Southeastern Sand & Gravel Llc → WOODALL PIT #2**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Marc B  Tyson et al → WOODALL PIT #2; 2001-06-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Southeastern Sand & Gravel Llc → WOODALL PIT #2; 2001-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Marc B  Tyson et al → Southeastern Sand & Gravel Llc; 2001-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul W  Bryant Jr et al → Southeastern Sand & Gravel Llc; 2001-08-01 to current/open; source msha-controller-operator-history