Borðan lighthouse
E607651
Borðan lighthouse is a coastal navigational beacon located on the island of Nólsoy in the Faroe Islands, guiding maritime traffic through the surrounding North Atlantic waters.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Borðan lighthouse canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6556742 — 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: Borðan lighthouse Context triple: [Nólsoy, hasLighthouse, Borðan lighthouse]
-
A.
Fidra Lighthouse
Fidra Lighthouse is a coastal navigational beacon located on the uninhabited island of Fidra in the Firth of Forth, Scotland, guiding maritime traffic in the surrounding waters.
-
B.
Piran lighthouse
Piran lighthouse is a historic coastal beacon located at the tip of the Piran peninsula on Slovenia’s Adriatic coast, serving as a prominent maritime and tourist landmark.
-
C.
Trintelhaven lighthouse
Trintelhaven lighthouse is a navigational beacon located along the Houtribdijk causeway in the Netherlands, guiding ships across the Markermeer and IJsselmeer.
-
D.
Kõpu Lighthouse
Kõpu Lighthouse is one of the oldest continuously operating lighthouses in the world, located on the Estonian island of Hiiumaa and serving as a historic navigational landmark in the Baltic Sea.
-
E.
Tahkuna Lighthouse
Tahkuna Lighthouse is a historic cast-iron lighthouse located on the northern tip of Hiiumaa Island in Estonia, known for being one of the tallest lighthouses in the country.
- 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: Borðan lighthouse Target entity description: Borðan lighthouse is a coastal navigational beacon located on the island of Nólsoy in the Faroe Islands, guiding maritime traffic through the surrounding North Atlantic waters.
-
A.
Fidra Lighthouse
Fidra Lighthouse is a coastal navigational beacon located on the uninhabited island of Fidra in the Firth of Forth, Scotland, guiding maritime traffic in the surrounding waters.
-
B.
Piran lighthouse
Piran lighthouse is a historic coastal beacon located at the tip of the Piran peninsula on Slovenia’s Adriatic coast, serving as a prominent maritime and tourist landmark.
-
C.
Trintelhaven lighthouse
Trintelhaven lighthouse is a navigational beacon located along the Houtribdijk causeway in the Netherlands, guiding ships across the Markermeer and IJsselmeer.
-
D.
Kõpu Lighthouse
Kõpu Lighthouse is one of the oldest continuously operating lighthouses in the world, located on the Estonian island of Hiiumaa and serving as a historic navigational landmark in the Baltic Sea.
-
E.
Tahkuna Lighthouse
Tahkuna Lighthouse is a historic cast-iron lighthouse located on the northern tip of Hiiumaa Island in Estonia, known for being one of the tallest lighthouses in the country.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
lighthouse
ⓘ
navigational aid ⓘ |
| category | Lighthouses in the Faroe Islands ⓘ |
| country | Faroe Islands NERFINISHED ⓘ |
| environment | marine ⓘ |
| hasFunction |
coastal navigation
ⓘ
guiding maritime traffic ⓘ |
| isActive | true ⓘ |
| isCoastal | true ⓘ |
| locatedIn |
Faroe Islands archipelago
NERFINISHED
ⓘ
North Atlantic Ocean NERFINISHED ⓘ Nólsoy island NERFINISHED ⓘ Tórshavn Municipality NERFINISHED ⓘ |
| locatedNear |
Nólsoy village
NERFINISHED
ⓘ
Tórshavn NERFINISHED ⓘ |
| locatedOn | Nólsoy NERFINISHED ⓘ |
| medium | light signal ⓘ |
| navigationalRole |
aiding safe passage
ⓘ
marking coastline ⓘ |
| purpose |
maritime safety
ⓘ
navigation aid for coastal shipping ⓘ |
| regionServed |
approaches to Tórshavn
ⓘ
waters around Nólsoy ⓘ |
| seaArea | North Atlantic NERFINISHED ⓘ |
| structureType | lighthouse tower ⓘ |
| surroundedBy | North Atlantic waters NERFINISHED ⓘ |
| usedBy |
cargo vessels
ⓘ
fishing vessels ⓘ local ferry traffic ⓘ ships ⓘ |
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: Borðan lighthouse Description of subject: Borðan lighthouse is a coastal navigational beacon located on the island of Nólsoy in the Faroe Islands, guiding maritime traffic through the surrounding North Atlantic waters.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.