{
  "asset_id": "LUX-ASSET-000631",
  "edges": [
    {
      "confidence_level": "medium",
      "date": "1858",
      "description": "The imported Pencarrow Head Chance Brothers asset is modeled as a second-order fixed lens manufactured in 1858 for the upper Pencarrow lighthouse system.",
      "event_id": "HERITAGE-REL-000105",
      "id": "HERITAGE-REL-000105",
      "relation_type": "manufactured_by",
      "source": "LUX-ASSET-000238",
      "target": "LUX-PLACE-000005"
    },
    {
      "confidence_level": "high",
      "date": "1858-1859",
      "description": "The Pencarrow Head tower kit arrived in Wellington in 480 packages in 1858, was transferred to Pencarrow Head, hauled up to the site, and was ready for the first lighting on 1 January 1859.",
      "event_id": "HERITAGE-REL-000114",
      "id": "HERITAGE-REL-000114",
      "relation_type": "installed_at",
      "source": "LUX-ASSET-000632",
      "target": "LUX-PLACE-000015"
    },
    {
      "confidence_level": "high",
      "date": "1859-01-01",
      "description": "Pencarrow Head’s permanent lighthouse was first lit on New Year’s Day 1859 and is treated as the installation context for the root Chance lens/light system.",
      "event_id": "HERITAGE-REL-000106",
      "id": "HERITAGE-REL-000106",
      "relation_type": "installed_at",
      "source": "LUX-ASSET-000238",
      "target": "LUX-PLACE-000015"
    },
    {
      "confidence_level": "high",
      "date": "1859-01-01",
      "description": "The upper Pencarrow permanent light entered service as New Zealand’s first permanent lighthouse.",
      "event_id": "HERITAGE-REL-000107",
      "id": "HERITAGE-REL-000107",
      "relation_type": "commissioned",
      "source": "LUX-ASSET-000238",
      "target": "LUX-PLACE-000015"
    },
    {
      "confidence_level": "high",
      "date": "1887",
      "description": "The original Tory Island hyper-radial optic is modeled as a Chance Brothers manufactured object for the Heritage Journeys showcase.",
      "event_id": "HERITAGE-REL-000029",
      "id": "HERITAGE-REL-000029",
      "relation_type": "manufactured_by",
      "source": "LUX-ASSET-000607",
      "target": "LUX-PLACE-000005"
    },
    {
      "confidence_level": "high",
      "date": "1887",
      "description": "The original hyper-radial optic was installed in the Tory Island Lighthouse context in 1887.",
      "event_id": "HERITAGE-REL-000030",
      "id": "HERITAGE-REL-000030",
      "relation_type": "installed_at",
      "source": "LUX-ASSET-000607",
      "target": "LUX-PLACE-000004"
    },
    {
      "confidence_level": "medium",
      "date": "1887-1923",
      "description": "The original hyper-radial optic was historically part of the Tory Island Lighthouse optical system before reconstruction.",
      "event_id": "HERITAGE-REL-000046",
      "id": "HERITAGE-REL-000046",
      "relation_type": "historically_part_of",
      "source": "LUX-ASSET-000607",
      "target": "LUX-PLACE-000004"
    },
    {
      "confidence_level": "medium",
      "date": "1908",
      "description": "Public reference sources report that the Cape North Fresnel lens was made by Chance Brothers in England.",
      "event_id": "HERITAGE-REL-000050",
      "id": "HERITAGE-REL-000050",
      "relation_type": "manufactured_by",
      "source": "LUX-ASSET-000619",
      "target": "LUX-PLACE-000005"
    },
    {
      "confidence_level": "medium",
      "date": "1908",
      "description": "The Cape North Chance Brothers Fresnel lens was installed at Cape North Lighthouse in 1908.",
      "event_id": "HERITAGE-REL-000051",
      "id": "HERITAGE-REL-000051",
      "relation_type": "installed_at",
      "source": "LUX-ASSET-000619",
      "target": "LUX-PLACE-000009"
    },
    {
      "confidence_level": "medium",
      "date": "1923-1928",
      "description": "The original Tory optic was removed from its original configuration before reconstruction into two biform optics.",
      "event_id": "HERITAGE-REL-000031",
      "id": "HERITAGE-REL-000031",
      "relation_type": "removed_from",
      "source": "LUX-ASSET-000607",
      "target": "LUX-PLACE-000004"
    },
    {
      "confidence_level": "medium",
      "date": "1923-1928",
      "description": "The original Tory optic was sent to Chance Brothers in Smethwick for reconstruction.",
      "event_id": "HERITAGE-REL-000032",
      "id": "HERITAGE-REL-000032",
      "relation_type": "moved_to",
      "source": "LUX-ASSET-000607",
      "target": "LUX-PLACE-000005"
    },
    {
      "confidence_level": "medium",
      "date": "1923-1928",
      "description": "One derived biform component continued the Tory Island optic lineage.",
      "event_id": "HERITAGE-REL-000033",
      "id": "HERITAGE-REL-000033",
      "relation_type": "split_into",
      "source": "LUX-ASSET-000607",
      "target": "LUX-ASSET-000623"
    },
    {
      "confidence_level": "high",
      "date": "1923-1928",
      "description": "The Mew Island / Great Light component derives from the divided Tory Island hyper-radial optic.",
      "event_id": "HERITAGE-REL-000034",
      "id": "HERITAGE-REL-000034",
      "relation_type": "split_into",
      "source": "LUX-ASSET-000607",
      "target": "LUX-ASSET-000624"
    },
    {
      "confidence_level": "medium",
      "date": "1923-1928",
      "description": "The Tory-retained biform component is derived from the original Tory Island hyper-radial optic.",
      "event_id": "HERITAGE-REL-000035",
      "id": "HERITAGE-REL-000035",
      "relation_type": "derived_from",
      "source": "LUX-ASSET-000623",
      "target": "LUX-ASSET-000607"
    },
    {
      "confidence_level": "high",
      "date": "1923-1928",
      "description": "The Mew Island / Great Light component is derived from the original Tory Island hyper-radial optic.",
      "event_id": "HERITAGE-REL-000036",
      "id": "HERITAGE-REL-000036",
      "relation_type": "derived_from",
      "source": "LUX-ASSET-000624",
      "target": "LUX-ASSET-000607"
    },
    {
      "confidence_level": "high",
      "date": "1923",
      "description": "The Tory-retained biform component continued in service at Tory Island.",
      "event_id": "HERITAGE-REL-000037",
      "id": "HERITAGE-REL-000037",
      "relation_type": "installed_at",
      "source": "LUX-ASSET-000623",
      "target": "LUX-PLACE-000004"
    },
    {
      "confidence_level": "high",
      "date": "1928",
      "description": "The Mew Island / Great Light component was installed at Mew Island Lighthouse in 1928.",
      "event_id": "HERITAGE-REL-000038",
      "id": "HERITAGE-REL-000038",
      "relation_type": "installed_at",
      "source": "LUX-ASSET-000624",
      "target": "LUX-PLACE-000006"
    },
    {
      "confidence_level": "high",
      "date": "1935",
      "description": "After the automated Baring Head light became operational in 1935, Pencarrow’s upper light was no longer the main approach light and was used solely as a day mark.",
      "event_id": "HERITAGE-REL-000109",
      "id": "HERITAGE-REL-000109",
      "relation_type": "replaced_by",
      "source": "LUX-ASSET-000238",
      "target": "LUX-ASSET-000631"
    },
    {
      "confidence_level": "medium",
      "date": "1935",
      "description": "Baring Head became operational in 1935 as the new automated light serving the Wellington Harbour approach.",
      "event_id": "HERITAGE-REL-000110",
      "id": "HERITAGE-REL-000110",
      "relation_type": "commissioned",
      "source": "LUX-ASSET-000631",
      "target": "LUX-PLACE-000017"
    },
    {
      "confidence_level": "high",
      "date": "1966",
      "description": "The lighthouse was transferred to the New Zealand Historic Places Trust in 1966 after it was no longer required as a navigational aid.",
      "event_id": "HERITAGE-REL-000111",
      "id": "HERITAGE-REL-000111",
      "relation_type": "transferred_to",
      "source": "LUX-ASSET-000238",
      "target": "LUX-PLACE-000015"
    },
    {
      "confidence_level": "high",
      "date": "1974-1980",
      "description": "A significant restoration project was completed between 1974 and 1980 by the Ministry of Works and Development at NZHPT request.",
      "event_id": "HERITAGE-REL-000112",
      "id": "HERITAGE-REL-000112",
      "relation_type": "restored",
      "source": "LUX-ASSET-000238",
      "target": "LUX-PLACE-000015"
    },
    {
      "confidence_level": "medium",
      "date": "1980",
      "description": "Reviewed sources associate the Cape North Chance Brothers Fresnel lens with museum custody in Ottawa.",
      "event_id": "HERITAGE-REL-000023",
      "id": "HERITAGE-REL-000023",
      "relation_type": "transferred_to",
      "source": "LUX-ASSET-000619",
      "target": "LUX-PLACE-000003"
    },
    {
      "confidence_level": "medium",
      "date": "1980",
      "description": "Reviewed museum-host context for the Cape North Chance Brothers lens in Ottawa.",
      "event_id": "HERITAGE-REL-000024",
      "id": "HERITAGE-REL-000024",
      "relation_type": "displayed_at",
      "source": "LUX-ASSET-000619",
      "target": "LUX-PLACE-000003"
    },
    {
      "confidence_level": "medium",
      "date": "1980",
      "description": "Reviewed sources associate the Cape North lens with later removal from the lighthouse context; exact date still needs primary confirmation.",
      "event_id": "HERITAGE-REL-000052",
      "id": "HERITAGE-REL-000052",
      "relation_type": "removed_from",
      "source": "LUX-ASSET-000619",
      "target": "LUX-PLACE-000009"
    },
    {
      "confidence_level": "medium",
      "date": "1980",
      "description": "The Cape North Chance Brothers lens is associated with museum custody context at the Canada Science and Technology Museum in Ottawa.",
      "event_id": "HERITAGE-REL-000053",
      "id": "HERITAGE-REL-000053",
      "relation_type": "current_location",
      "source": "LUX-ASSET-000619",
      "target": "LUX-PLACE-000003"
    },
    {
      "confidence_level": "high",
      "date": "2014",
      "description": "The Mew Island hyper-radial optic was removed from Mew Island in 2014.",
      "event_id": "HERITAGE-REL-000039",
      "id": "HERITAGE-REL-000039",
      "relation_type": "removed_from",
      "source": "LUX-ASSET-000624",
      "target": "LUX-PLACE-000006"
    },
    {
      "confidence_level": "medium",
      "date": "2014",
      "description": "The removed Mew Island optic was restored in the Irish Lights workshop before public display.",
      "event_id": "HERITAGE-REL-000040",
      "id": "HERITAGE-REL-000040",
      "relation_type": "restored_by",
      "source": "LUX-ASSET-000624",
      "target": "LUX-PLACE-000007"
    },
    {
      "confidence_level": "medium",
      "date": "2014-2015",
      "description": "After restoration, the optic was moved to Belfast's Titanic Quarter display context.",
      "event_id": "HERITAGE-REL-000041",
      "id": "HERITAGE-REL-000041",
      "relation_type": "moved_to",
      "source": "LUX-ASSET-000624",
      "target": "LUX-PLACE-000008"
    },
    {
      "confidence_level": "high",
      "date": "2015",
      "description": "The restored optic is publicly displayed as The Great Light in Belfast.",
      "event_id": "HERITAGE-REL-000042",
      "id": "HERITAGE-REL-000042",
      "relation_type": "displayed_at",
      "source": "LUX-ASSET-000624",
      "target": "LUX-PLACE-000008"
    },
    {
      "confidence_level": "high",
      "date": "2015",
      "description": "The Great Light display site is the current public location of the Mew Island optic component.",
      "event_id": "HERITAGE-REL-000043",
      "id": "HERITAGE-REL-000043",
      "relation_type": "current_location",
      "source": "LUX-ASSET-000624",
      "target": "LUX-PLACE-000008"
    },
    {
      "confidence_level": "high",
      "date": "2015",
      "description": "The Mew Island component is preserved for public heritage interpretation at The Great Light.",
      "event_id": "HERITAGE-REL-000044",
      "id": "HERITAGE-REL-000044",
      "relation_type": "preserved_at",
      "source": "LUX-ASSET-000624",
      "target": "LUX-PLACE-000008"
    },
    {
      "confidence_level": "high",
      "date": "2015",
      "description": "The public name The Great Light refers to the restored Mew Island hyper-radial optic component in its Belfast display identity.",
      "event_id": "HERITAGE-REL-000045",
      "id": "HERITAGE-REL-000045",
      "relation_type": "same_identity_as",
      "source": "LUX-ASSET-000624",
      "target": "LUX-PLACE-000008"
    }
  ],
  "nodes": [
    {
      "asset_kind": "lens",
      "entity_type": "heritage_asset",
      "id": "LUX-ASSET-000238",
      "is_root": false,
      "label": "Pencarrow Head Lighthouse Chance Brothers lens",
      "latitude": null,
      "longitude": null,
      "place_type": "",
      "url": "/heritage-assets/LUX-ASSET-000238/"
    },
    {
      "asset_kind": "lens",
      "entity_type": "heritage_asset",
      "id": "LUX-ASSET-000607",
      "is_root": false,
      "label": "Tory Island Chance Brothers hyper-radial optic",
      "latitude": null,
      "longitude": null,
      "place_type": "",
      "url": "/heritage-assets/LUX-ASSET-000607/"
    },
    {
      "asset_kind": "lens",
      "entity_type": "heritage_asset",
      "id": "LUX-ASSET-000619",
      "is_root": false,
      "label": "Cape North relocated Chance Brothers Fresnel lens",
      "latitude": null,
      "longitude": null,
      "place_type": "",
      "url": "/heritage-assets/LUX-ASSET-000619/"
    },
    {
      "asset_kind": "lens",
      "entity_type": "heritage_asset",
      "id": "LUX-ASSET-000623",
      "is_root": false,
      "label": "Tory Island retained hyper-radial optic component",
      "latitude": null,
      "longitude": null,
      "place_type": "",
      "url": "/heritage-assets/LUX-ASSET-000623/"
    },
    {
      "asset_kind": "lens",
      "entity_type": "heritage_asset",
      "id": "LUX-ASSET-000624",
      "is_root": false,
      "label": "The Great Light / Mew Island hyper-radial optic component",
      "latitude": null,
      "longitude": null,
      "place_type": "",
      "url": "/heritage-assets/LUX-ASSET-000624/"
    },
    {
      "asset_kind": "tower",
      "entity_type": "heritage_asset",
      "id": "LUX-ASSET-000631",
      "is_root": true,
      "label": "Baring Head Lighthouse",
      "latitude": null,
      "longitude": null,
      "place_type": "",
      "url": "/heritage-assets/LUX-ASSET-000631/"
    },
    {
      "asset_kind": "tower",
      "entity_type": "heritage_asset",
      "id": "LUX-ASSET-000632",
      "is_root": false,
      "label": "Pencarrow Head cast-iron lighthouse tower kit",
      "latitude": null,
      "longitude": null,
      "place_type": "",
      "url": "/heritage-assets/LUX-ASSET-000632/"
    },
    {
      "asset_kind": "",
      "entity_type": "heritage_place",
      "id": "LUX-PLACE-000003",
      "is_root": false,
      "label": "Canada Science and Technology Museum",
      "latitude": 45.4031,
      "longitude": -75.6184,
      "place_type": "museum",
      "url": "/heritage-places/LUX-PLACE-000003/"
    },
    {
      "asset_kind": "",
      "entity_type": "heritage_place",
      "id": "LUX-PLACE-000004",
      "is_root": false,
      "label": "Tory Island Lighthouse",
      "latitude": 55.272617,
      "longitude": -8.2494,
      "place_type": "historical_location",
      "url": "/heritage-places/LUX-PLACE-000004/"
    },
    {
      "asset_kind": "",
      "entity_type": "heritage_place",
      "id": "LUX-PLACE-000005",
      "is_root": false,
      "label": "Chance Brothers Smethwick Works",
      "latitude": null,
      "longitude": null,
      "place_type": "historical_location",
      "url": "/heritage-places/LUX-PLACE-000005/"
    },
    {
      "asset_kind": "",
      "entity_type": "heritage_place",
      "id": "LUX-PLACE-000006",
      "is_root": false,
      "label": "Mew Island Lighthouse",
      "latitude": 54.698717,
      "longitude": -5.513733,
      "place_type": "historical_location",
      "url": "/heritage-places/LUX-PLACE-000006/"
    },
    {
      "asset_kind": "",
      "entity_type": "heritage_place",
      "id": "LUX-PLACE-000007",
      "is_root": false,
      "label": "Irish Lights workshop, Dun Laoghaire",
      "latitude": null,
      "longitude": null,
      "place_type": "storage",
      "url": "/heritage-places/LUX-PLACE-000007/"
    },
    {
      "asset_kind": "",
      "entity_type": "heritage_place",
      "id": "LUX-PLACE-000008",
      "is_root": false,
      "label": "The Great Light, Belfast",
      "latitude": 54.601944,
      "longitude": -5.910278,
      "place_type": "display_site",
      "url": "/heritage-places/LUX-PLACE-000008/"
    },
    {
      "asset_kind": "",
      "entity_type": "heritage_place",
      "id": "LUX-PLACE-000009",
      "is_root": false,
      "label": "Cape North Lighthouse",
      "latitude": 46.097222,
      "longitude": -59.857778,
      "place_type": "historical_location",
      "url": "/heritage-places/LUX-PLACE-000009/"
    },
    {
      "asset_kind": "",
      "entity_type": "heritage_place",
      "id": "LUX-PLACE-000015",
      "is_root": false,
      "label": "Pencarrow Head Lighthouse",
      "latitude": -41.3589061984,
      "longitude": 174.8500488537,
      "place_type": "historical_location",
      "url": "/heritage-places/LUX-PLACE-000015/"
    },
    {
      "asset_kind": "",
      "entity_type": "heritage_place",
      "id": "LUX-PLACE-000017",
      "is_root": false,
      "label": "Baring Head Lighthouse",
      "latitude": -41.408,
      "longitude": 174.871,
      "place_type": "historical_location",
      "url": "/heritage-places/LUX-PLACE-000017/"
    }
  ],
  "root_id": "LUX-ASSET-000631"
}