Barra Head Lighthouse
E471097
Barra Head Lighthouse is a remote Scottish lighthouse situated on the southern tip of the Outer Hebrides, guiding ships through the hazardous waters around the island of Berneray.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Barra Head Lighthouse canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4729863 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Barra Head Lighthouse Context triple: [David Alan Stevenson, designed, Barra Head Lighthouse]
-
A.
Bressay Lighthouse
Bressay Lighthouse is a historic coastal beacon on the island of Bressay in Shetland, Scotland, guiding ships entering Lerwick Harbour since the mid-19th century.
-
B.
Admiralty Head Lighthouse
Admiralty Head Lighthouse is a historic coastal beacon located on Whidbey Island in Washington State, known for guiding ships entering Puget Sound and for its distinctive Spanish-style architecture.
-
C.
Inchcape Rock Lighthouse
Inchcape Rock Lighthouse is a historic offshore lighthouse on the treacherous Bell Rock in the North Sea, renowned as one of the world’s oldest surviving sea-washed lighthouses and a major feat of early 19th-century engineering.
-
D.
Mull of Galloway Lighthouse
Mull of Galloway Lighthouse is a historic coastal lighthouse situated at the southernmost point of Scotland, overlooking the Irish Sea and serving as a prominent navigational landmark.
-
E.
Highland Lighthouse
Highland Lighthouse is a historic coastal beacon in Truro, Massachusetts, known as Cape Cod’s oldest lighthouse and a prominent maritime navigation landmark.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Barra Head Lighthouse Target entity description: Barra Head Lighthouse is a remote Scottish lighthouse situated on the southern tip of the Outer Hebrides, guiding ships through the hazardous waters around the island of Berneray.
-
A.
Bressay Lighthouse
Bressay Lighthouse is a historic coastal beacon on the island of Bressay in Shetland, Scotland, guiding ships entering Lerwick Harbour since the mid-19th century.
-
B.
Admiralty Head Lighthouse
Admiralty Head Lighthouse is a historic coastal beacon located on Whidbey Island in Washington State, known for guiding ships entering Puget Sound and for its distinctive Spanish-style architecture.
-
C.
Inchcape Rock Lighthouse
Inchcape Rock Lighthouse is a historic offshore lighthouse on the treacherous Bell Rock in the North Sea, renowned as one of the world’s oldest surviving sea-washed lighthouses and a major feat of early 19th-century engineering.
-
D.
Mull of Galloway Lighthouse
Mull of Galloway Lighthouse is a historic coastal lighthouse situated at the southernmost point of Scotland, overlooking the Irish Sea and serving as a prominent navigational landmark.
-
E.
Highland Lighthouse
Highland Lighthouse is a historic coastal beacon in Truro, Massachusetts, known as Cape Cod’s oldest lighthouse and a prominent maritime navigation landmark.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
building
ⓘ
lighthouse ⓘ |
| access | by boat and steep path ⓘ |
| adminRegion | Na h-Eileanan Siar NERFINISHED ⓘ |
| automationDate | 1980 ⓘ |
| category | coastal lighthouse ⓘ |
| constructionMaterial | stone ⓘ |
| constructionStartDate | 1830 ⓘ |
| constructionType | masonry tower ⓘ |
| coordinates | approximately 56.796°N 7.650°W ⓘ |
| country | United Kingdom ⓘ |
| designer | Robert Stevenson NERFINISHED ⓘ |
| environment | remote and exposed Atlantic headland ⓘ |
| focalHeight | about 208 metres above sea level ⓘ |
| hasKeeperAccommodation | yes (now disused) ⓘ |
| heritageStatus | listed building (Scotland) ⓘ |
| inception | 1833 ⓘ |
| isPartOf | Outer Hebrides lighthouse network NERFINISHED ⓘ |
| lanternColor | black ⓘ |
| laterLightSource | electric light ⓘ |
| lightCharacteristic | Fl (3) W 30s ⓘ |
| lightRange | about 18 nautical miles ⓘ |
| locatedIn |
Berneray
NERFINISHED
ⓘ
North Atlantic Ocean NERFINISHED ⓘ Outer Hebrides ⓘ Scotland ⓘ |
| locatedOn |
Barra Head
NERFINISHED
ⓘ
southern tip of the island of Berneray ⓘ |
| managingAgent | Northern Lighthouse Board NERFINISHED ⓘ |
| marking | white tower with black lantern ⓘ |
| nearbyIsland | Isle of Barra NERFINISHED ⓘ |
| nearbyWaterBody | North Atlantic Ocean NERFINISHED ⓘ |
| notableFor |
being one of the most remote lighthouses in Scotland
ⓘ
dramatic cliffs and seabird colonies nearby ⓘ |
| operator | Northern Lighthouse Board NERFINISHED ⓘ |
| originalLightSource | oil lamp ⓘ |
| powerSource | solar power (modern) ⓘ |
| purpose |
to guide ships through waters south of the Outer Hebrides
ⓘ
to warn of hazards around Berneray and Barra Head ⓘ |
| region | Western Isles NERFINISHED ⓘ |
| seaArea | Sea of the Hebrides NERFINISHED ⓘ |
| status | active lighthouse ⓘ |
| towerColor | white ⓘ |
| towerHeight | about 18 metres ⓘ |
| towerShape | cylindrical tower with balcony and lantern ⓘ |
| yearLit | 1833 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Barra Head Lighthouse Description of subject: Barra Head Lighthouse is a remote Scottish lighthouse situated on the southern tip of the Outer Hebrides, guiding ships through the hazardous waters around the island of Berneray.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.