# Relationship history for MSHA mine 3610192

Current hierarchy: **Neilton  Dias → Neilton Dias → Neilton Quarry**

- 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:** Neilton Dias → Neilton Quarry; 2016-08-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Neilton  Dias → Neilton Quarry; 2016-08-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Neilton  Dias → Neilton Dias; 2016-08-09 to current/open; source msha-controller-operator-history