# Relationship history for MSHA mine 5400210

Current hierarchy: **Rodriguez Jose Clemente → Sabana Grande Aggregates Inc → Gravero Sabana**

- 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:** Sabana Grande Aggregates Inc → Gravero Sabana; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Rodriguez Jose Clemente → Gravero Sabana; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rodriguez Jose Clemente → Sabana Grande Aggregates Inc; 1950-01-01 to current/open; source msha-controller-operator-history