# Relationship history for MSHA mine 4104703

Current hierarchy: **Edward  Maldonado; Edilberto  Maldonado → Maldonado Landscaping → Wayne Meier Pit**

- 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:** Maldonado Landscaping → Wayne Meier Pit; 2007-10-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Edilberto  Maldonado et al → Wayne Meier Pit; 2007-10-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edilberto  Maldonado et al → Maldonado Landscaping; 2007-10-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Edward  Maldonado et al → Maldonado Landscaping; 2007-10-09 to current/open; source msha-controller-operator-history