Ailsa Craig Lighthouse
E901453
Ailsa Craig Lighthouse is a historic Scottish lighthouse situated on the uninhabited island of Ailsa Craig in the Firth of Clyde, serving as a navigational aid in the surrounding coastal waters.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ailsa Craig Lighthouse canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T11052987 — 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: Ailsa Craig Lighthouse Context triple: [Ailsa Craig, hasStructure, Ailsa Craig Lighthouse]
-
A.
Esha Ness Lighthouse
Esha Ness Lighthouse is a remote, ruggedly situated lighthouse on the Shetland Islands in Scotland, known for guiding ships along the dramatic cliffs of Esha Ness.
-
B.
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.
-
C.
Ardnamurchan Lighthouse
Ardnamurchan Lighthouse is a historic 19th-century stone lighthouse marking the westernmost point of the British mainland on Scotland’s Ardnamurchan Peninsula.
-
D.
Kinnaird Head Lighthouse
Kinnaird Head Lighthouse is a historic Scottish lighthouse in Fraserburgh, Aberdeenshire, notable for being one of the first mainland lighthouses in Scotland and now part of a lighthouse museum.
-
E.
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.
- 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: Ailsa Craig Lighthouse Target entity description: Ailsa Craig Lighthouse is a historic Scottish lighthouse situated on the uninhabited island of Ailsa Craig in the Firth of Clyde, serving as a navigational aid in the surrounding coastal waters.
-
A.
Esha Ness Lighthouse
Esha Ness Lighthouse is a remote, ruggedly situated lighthouse on the Shetland Islands in Scotland, known for guiding ships along the dramatic cliffs of Esha Ness.
-
B.
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.
-
C.
Ardnamurchan Lighthouse
Ardnamurchan Lighthouse is a historic 19th-century stone lighthouse marking the westernmost point of the British mainland on Scotland’s Ardnamurchan Peninsula.
-
D.
Kinnaird Head Lighthouse
Kinnaird Head Lighthouse is a historic Scottish lighthouse in Fraserburgh, Aberdeenshire, notable for being one of the first mainland lighthouses in Scotland and now part of a lighthouse museum.
-
E.
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.
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf |
lighthouse
ⓘ
navigational aid ⓘ |
| associatedWith | shipping routes to and from the Clyde ⓘ |
| category |
Buildings and structures in Ayrshire
ⓘ
Lighthouses in Scotland ⓘ Maritime navigation structures in the United Kingdom ⓘ |
| constructionMaterial | stone ⓘ |
| country | Scotland ⓘ |
| function |
to improve maritime safety in the Firth of Clyde
ⓘ
to mark Ailsa Craig for passing vessels ⓘ |
| habitationStatusOfIsland | uninhabited ⓘ |
| hasGallery | yes ⓘ |
| hasLantern | yes ⓘ |
| heritageStatus | historic lighthouse ⓘ |
| lightCharacteristic | flashing light ⓘ |
| locatedIn |
Ailsa Craig
ⓘ
Ayrshire ⓘ Scottish coastal waters ⓘ United Kingdom ⓘ |
| locatedInBodyOfWater | Firth of Clyde ⓘ |
| locatedNear |
Clyde sea routes
ⓘ
Scottish west coast ⓘ |
| locatedOn |
Ailsa Craig island
ⓘ
linked to:
Ailsa Craig
uninhabited island ⓘ |
| managingAgent | Northern Lighthouse Board ⓘ |
| operator | Northern Lighthouse Board ⓘ |
| purpose | to serve as a navigational aid ⓘ |
| region | Firth of Clyde ⓘ |
| seaRegion | Firth of Clyde ⓘ |
| servesAs | coastal navigation aid ⓘ |
| status | active lighthouse ⓘ |
| towerShape | cylindrical tower ⓘ |
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: Ailsa Craig Lighthouse Description of subject: Ailsa Craig Lighthouse is a historic Scottish lighthouse situated on the uninhabited island of Ailsa Craig in the Firth of Clyde, serving as a navigational aid in the surrounding coastal waters.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.