{
  "asset_id": "LUX-ASSET-000659",
  "edges": [
    {
      "confidence_level": "high",
      "date": "1954",
      "description": "The destroyed metal tower was replaced by the present granite-and-concrete lighthouse after seven years of offshore construction.",
      "event_id": "HERITAGE-REL-000175",
      "id": "HERITAGE-REL-000175",
      "relation_type": "replaced_by",
      "source": "LUX-ASSET-000659",
      "target": "LUX-ASSET-000660"
    },
    {
      "confidence_level": "medium",
      "date": "1954-06",
      "description": "Preferred public assertion at month precision: POP records the present lighthouse as lit in June 1954. This supports the Story's 1954 milestone without selecting a disputed exact day.",
      "event_id": "roches-douvres-commissioning-1954",
      "id": "HERITAGE-REL-000178",
      "relation_type": "commissioned",
      "source": "LUX-ASSET-000660",
      "target": "LUX-LH-000255"
    },
    {
      "confidence_level": "medium",
      "date": "1954-06-19",
      "description": "Alternative official assertion: the DIRM 2025 lighthouse guide gives 19 June 1954. It remains visible in Research but does not silently override the month-level editorial choice.",
      "event_id": "roches-douvres-commissioning-1954",
      "id": "HERITAGE-REL-000179",
      "relation_type": "commissioned",
      "source": "LUX-ASSET-000660",
      "target": "LUX-LH-000255"
    },
    {
      "confidence_level": "medium",
      "date": "1954-07-14",
      "description": "Alternative official assertion: the public DIRM lighthouse page places the lighting in the night of 13-14 July 1954. The anniversary framing remains evidence, not an uncontested exact date.",
      "event_id": "roches-douvres-commissioning-1954",
      "id": "HERITAGE-REL-000180",
      "relation_type": "commissioned",
      "source": "LUX-ASSET-000660",
      "target": "LUX-LH-000255"
    }
  ],
  "nodes": [
    {
      "asset_kind": "tower",
      "entity_type": "heritage_asset",
      "id": "LUX-ASSET-000659",
      "is_root": true,
      "label": "Roches-Douvres 1869 metal lighthouse",
      "latitude": null,
      "longitude": null,
      "place_type": "",
      "url": "/heritage-assets/LUX-ASSET-000659/"
    },
    {
      "asset_kind": "structure",
      "entity_type": "heritage_asset",
      "id": "LUX-ASSET-000660",
      "is_root": false,
      "label": "Roches-Douvres 1954 granite lighthouse",
      "latitude": null,
      "longitude": null,
      "place_type": "",
      "url": "/heritage-assets/LUX-ASSET-000660/"
    },
    {
      "asset_kind": "",
      "entity_type": "lighthouse",
      "id": "LUX-LH-000255",
      "is_root": false,
      "label": "Roches-Douvres",
      "latitude": null,
      "longitude": null,
      "place_type": "",
      "url": "/node/941/"
    }
  ],
  "root_id": "LUX-ASSET-000659"
}