Filtvet Lighthouse
E862682
Filtvet Lighthouse is a coastal navigational beacon in Hurum, Norway, guiding maritime traffic along the Oslofjord.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Filtvet Lighthouse canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T10428288 — 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: Filtvet Lighthouse Context triple: [Hurum, hasLighthouse, Filtvet Lighthouse]
-
A.
Keldsnor Lighthouse
Keldsnor Lighthouse is a coastal navigation beacon on the Danish island of Langeland, known for guiding ships through the Baltic Sea and serving as a local historical landmark.
-
B.
Trintelhaven lighthouse
Trintelhaven lighthouse is a navigational beacon located along the Houtribdijk causeway in the Netherlands, guiding ships across the Markermeer and IJsselmeer.
-
C.
Svaneke Lighthouse
Svaneke Lighthouse is a coastal navigation tower near the town of Svaneke on the Danish island of Bornholm, known for guiding ships in the Baltic Sea and serving as a local historical landmark.
-
D.
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.
-
E.
Staberhuk Lighthouse
Staberhuk Lighthouse is a historic coastal beacon on the German Baltic Sea island of Fehmarn, known for guiding maritime traffic and serving as a notable local 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: Filtvet Lighthouse Target entity description: Filtvet Lighthouse is a coastal navigational beacon in Hurum, Norway, guiding maritime traffic along the Oslofjord.
-
A.
Keldsnor Lighthouse
Keldsnor Lighthouse is a coastal navigation beacon on the Danish island of Langeland, known for guiding ships through the Baltic Sea and serving as a local historical landmark.
-
B.
Trintelhaven lighthouse
Trintelhaven lighthouse is a navigational beacon located along the Houtribdijk causeway in the Netherlands, guiding ships across the Markermeer and IJsselmeer.
-
C.
Svaneke Lighthouse
Svaneke Lighthouse is a coastal navigation tower near the town of Svaneke on the Danish island of Bornholm, known for guiding ships in the Baltic Sea and serving as a local historical landmark.
-
D.
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.
-
E.
Staberhuk Lighthouse
Staberhuk Lighthouse is a historic coastal beacon on the German Baltic Sea island of Fehmarn, known for guiding maritime traffic and serving as a notable local landmark.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
coastal lighthouse
ⓘ
lighthouse ⓘ |
| attachedTo | keeper’s house ⓘ |
| category |
Lighthouses in Norway
ⓘ
Lighthouses in Viken ⓘ |
| coast | inner Oslofjord coast ⓘ |
| constructionMaterial | wood ⓘ |
| country |
Kingdom of Norway
ⓘ
Norway ⓘ |
| currentUse |
navigational beacon
ⓘ
tourist attraction ⓘ |
| elevation | low elevation above sea level ⓘ |
| function |
guides maritime traffic
ⓘ
navigational aid ⓘ |
| hasAccess | by road ⓘ |
| hasBuilding |
keeper’s dwelling
ⓘ
light tower ⓘ |
| hasViewOf |
Oslofjord shipping lane
ⓘ
linked to:
Oslofjord maritime routes
|
| heritageDesignation | listed building in Norway ⓘ |
| languageOfName | Norwegian ⓘ |
| lightCharacteristic | occulting light ⓘ |
| lightColor |
green
ⓘ
red ⓘ white ⓘ |
| lightRange | visible from Oslofjord shipping routes ⓘ |
| lightSector | directional sectors for navigation in Oslofjord ⓘ |
| locatedIn |
Asker municipality
ⓘ
Hurum ⓘ Scandinavia ⓘ Viken county ⓘ eastern Norway ⓘ
linked to:
Eastern Norway
|
| locatedNear | village of Filtvet ⓘ |
| locatedOn |
Oslofjord
ⓘ
southern side of Oslofjord ⓘ |
| managedBy | Norwegian Coastal Administration ⓘ |
| namedAfter | Filtvet ⓘ |
| nearbyCity |
Drammen
ⓘ
Oslo ⓘ |
| operator |
Kystverket
ⓘ
linked to:
Norwegian Coastal Administration
|
| originalUse | manned lighthouse station ⓘ |
| purpose | ensure safe passage of vessels in Oslofjord ⓘ |
| region | Oslofjord region ⓘ |
| status |
automated
ⓘ
protected cultural heritage site ⓘ |
| towerShape | square tower ⓘ |
| waterwayServed | Oslofjord ⓘ |
| yearLit | 1840 ⓘ |
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: Filtvet Lighthouse Description of subject: Filtvet Lighthouse is a coastal navigational beacon in Hurum, Norway, guiding maritime traffic along the Oslofjord.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.