# Relationship history for MSHA mine 1601328

Current hierarchy: **Scott M  Smith → Allgood Inc → PLAINVIEW LEASE**

- 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:** Scott M  Smith → PLAINVIEW LEASE; 1997-09-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Frankl Smith Frankl Inc → PLAINVIEW LEASE; 1998-03-01 to 1998-09-30; source msha-controller-operator-history
- **controller_controls_mine:** Smith Katharine M → PLAINVIEW LEASE; 1998-03-01 to 1998-09-30; source msha-controller-operator-history
- **controller_controls_operator:** Smith Katharine M → Frankl Smith Frankl Inc; 1998-03-01 to 1998-09-30; source msha-controller-operator-history
- **operator_operates_mine:** Allgood Inc → PLAINVIEW LEASE; 1998-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Scott M  Smith → Allgood Inc; 1998-10-01 to current/open; source msha-controller-operator-history