Ristna Lighthouse
E144538
Ristna Lighthouse is a historic coastal beacon located on the western tip of Hiiumaa Island in Estonia, guiding ships in the Baltic Sea.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ristna Lighthouse canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1162840 — 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: Ristna Lighthouse Context triple: [Hiiumaa, hasLighthouse, Ristna Lighthouse]
-
A.
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.
-
B.
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.
-
C.
Tokarevsky Lighthouse
Tokarevsky Lighthouse is a historic coastal beacon near Vladivostok, Russia, known for guiding ships through the approaches to the city’s harbor on the Sea of Japan.
-
D.
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.
-
E.
Elie Lighthouse
Elie Lighthouse is a coastal navigational beacon near the village of Elie in Fife, Scotland, guiding ships along the Firth of Forth.
- 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: Ristna Lighthouse Target entity description: Ristna Lighthouse is a historic coastal beacon located on the western tip of Hiiumaa Island in Estonia, guiding ships in the Baltic Sea.
-
A.
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.
-
B.
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.
-
C.
Tokarevsky Lighthouse
Tokarevsky Lighthouse is a historic coastal beacon near Vladivostok, Russia, known for guiding ships through the approaches to the city’s harbor on the Sea of Japan.
-
D.
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.
-
E.
Elie Lighthouse
Elie Lighthouse is a coastal navigational beacon near the village of Elie in Fife, Scotland, guiding ships along the Firth of Forth.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
coastal lighthouse
ⓘ
lighthouse ⓘ |
| builtDuring | Russian Empire period ⓘ |
| category |
Buildings and structures in Hiiu County
ⓘ
Lighthouses in Estonia ⓘ Tourist attractions in Hiiu County ⓘ |
| color | white tower ⓘ |
| constructionMaterial |
brick
ⓘ
cast iron ⓘ |
| coordinates | 58.923°N 22.055°E ⓘ |
| country | Estonia ⓘ |
| countryCode | EE ⓘ |
| designedBy | Russian Imperial Hydrographic Department ⓘ |
| elevationAboveSeaLevel | approximately 37 meters ⓘ |
| function |
aids to navigation
ⓘ
guides ships in the Baltic Sea ⓘ |
| hasFeature |
lantern room
ⓘ
observation platform ⓘ |
| hasViewOf |
Baltic Sea shipping lanes
ⓘ
Hiiumaa coastline ⓘ
linked to:
Hiiumaa
|
| heritageStatus | cultural monument of Estonia ⓘ |
| heritageType | historic lighthouse ⓘ |
| lanternColor | red lantern ⓘ |
| lightCharacteristic | flashing light ⓘ |
| lightRange | about 12 nautical miles ⓘ |
| lightSource | electric light ⓘ |
| locatedAt | western tip of Hiiumaa Island ⓘ |
| locatedIn |
Hiiu County
ⓘ
Hiiumaa Island ⓘ
linked to:
Hiiumaa
Kärdla maritime region ⓘ western Estonia ⓘ |
| locatedOn | Baltic Sea ⓘ |
| managingAgent | Estonian Maritime Administration ⓘ |
| nearbySettlement |
Kõpu area
ⓘ
linked to:
Kõpu Peninsula
Ristna ⓘ |
| nearbyWaterBody | Baltic Sea ⓘ |
| originalLightSource | kerosene lamp ⓘ |
| partOf | Estonian lighthouse network ⓘ |
| purpose | to improve safety of navigation near Hiiumaa ⓘ |
| region | Baltic Sea ⓘ |
| status | active lighthouse ⓘ |
| subjectOf | maritime charts of the Baltic Sea ⓘ |
| tourism | open to visitors seasonally ⓘ |
| towerHeight | approximately 30 meters ⓘ |
| towerShape | cylindrical tower ⓘ |
| usedFor |
coastal marking
ⓘ
maritime navigation ⓘ |
| yearLit | 1874 ⓘ |
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: Ristna Lighthouse Description of subject: Ristna Lighthouse is a historic coastal beacon located on the western tip of Hiiumaa Island in Estonia, guiding ships in the Baltic Sea.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.