Naissaar lighthouse
E491091
Naissaar lighthouse is a historic coastal beacon located on Naissaar Island in northern Estonia, guiding maritime traffic in the Gulf of Finland.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Naissaar lighthouse canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5051775 — 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: Naissaar lighthouse Context triple: [Viimsi Parish, hasHeritageSite, Naissaar lighthouse]
-
A.
Ristna Lighthouse
Ristna Lighthouse is a historic coastal beacon located on the western tip of Hiiumaa Island in Estonia, guiding ships in the Baltic Sea.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
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.
- 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: Naissaar lighthouse Target entity description: Naissaar lighthouse is a historic coastal beacon located on Naissaar Island in northern Estonia, guiding maritime traffic in the Gulf of Finland.
-
A.
Ristna Lighthouse
Ristna Lighthouse is a historic coastal beacon located on the western tip of Hiiumaa Island in Estonia, guiding ships in the Baltic Sea.
-
B.
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.
-
C.
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.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
coastal lighthouse
ⓘ
lighthouse ⓘ |
| access | closed to public ⓘ |
| associatedWith | Estonian maritime navigation system ⓘ |
| country | Estonia ⓘ |
| countryCode | EE ⓘ |
| function |
aids navigation
ⓘ
guides maritime traffic ⓘ |
| hasGallery | yes ⓘ |
| hasLantern | yes ⓘ |
| heritageStatus | historic lighthouse ⓘ |
| lightCharacteristic | flashing white light ⓘ |
| locatedIn |
Baltic Sea
ⓘ
Europe ⓘ Gulf of Finland NERFINISHED ⓘ Harju County NERFINISHED ⓘ Naissaar NERFINISHED ⓘ Northern Europe ⓘ Viimsi Parish NERFINISHED ⓘ northern Estonia ⓘ |
| locatedInWaterbody |
Baltic Sea
NERFINISHED
ⓘ
Gulf of Finland NERFINISHED ⓘ |
| locatedNear |
Tallinn
NERFINISHED
ⓘ
shipping routes of the Gulf of Finland ⓘ |
| locatedOn |
Baltic Sea island
ⓘ
Naissaar Island NERFINISHED ⓘ |
| material | concrete ⓘ |
| nearbyCity | Tallinn NERFINISHED ⓘ |
| operatedBy | Estonian Maritime Administration NERFINISHED ⓘ |
| purpose | ensuring safety of vessels in the Gulf of Finland ⓘ |
| regionServed | northern coast of Estonia ⓘ |
| seaAreaServed |
Baltic Sea
NERFINISHED
ⓘ
Gulf of Finland NERFINISHED ⓘ |
| status | active ⓘ |
| 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: Naissaar lighthouse Description of subject: Naissaar lighthouse is a historic coastal beacon located on Naissaar Island in northern Estonia, guiding maritime traffic in the Gulf of Finland.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.