Utö lighthouse
E539187
Utö lighthouse is a historic beacon on the Finnish island of Utö in the Archipelago Sea, known as one of Finland’s oldest and southernmost lighthouses guiding Baltic Sea navigation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Utö lighthouse canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T5697804 — 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: Utö lighthouse Context triple: [Utö, hasPart, Utö lighthouse]
-
A.
Akraberg lighthouse
Akraberg lighthouse is a remote coastal beacon on the southern tip of Suðuroy in the Faroe Islands, known for guiding North Atlantic shipping and offering dramatic ocean views.
-
B.
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.
-
C.
Naissaar lighthouse
Naissaar lighthouse is a historic coastal beacon located on Naissaar Island in northern Estonia, guiding maritime traffic in the Gulf of Finland.
-
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.
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.
- 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: Utö lighthouse Target entity description: Utö lighthouse is a historic beacon on the Finnish island of Utö in the Archipelago Sea, known as one of Finland’s oldest and southernmost lighthouses guiding Baltic Sea navigation.
-
A.
Akraberg lighthouse
Akraberg lighthouse is a remote coastal beacon on the southern tip of Suðuroy in the Faroe Islands, known for guiding North Atlantic shipping and offering dramatic ocean views.
-
B.
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.
-
C.
Naissaar lighthouse
Naissaar lighthouse is a historic coastal beacon located on Naissaar Island in northern Estonia, guiding maritime traffic in the Gulf of Finland.
-
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.
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.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
lighthouse
ⓘ
navigational aid ⓘ |
| associatedWith |
Baltic Sea shipping lanes
ⓘ
linked to:
Baltic Sea trade routes
Finnish maritime history ⓘ |
| continent | Europe ⓘ |
| country | Finland ⓘ |
| function |
guiding Baltic Sea navigation
ⓘ
marine safety ⓘ |
| hasBuildingPart |
gallery
ⓘ
keeper’s quarters ⓘ lantern room ⓘ tower ⓘ watch room ⓘ |
| hasCoordinateSystem | WGS84 ⓘ |
| hasGallery | yes ⓘ |
| hasLantern | yes ⓘ |
| hasShape | square tower ⓘ |
| heritageStatus | historic lighthouse ⓘ |
| lightCharacteristic | flashing white light ⓘ |
| locatedAt | southern edge of the Finnish archipelago ⓘ |
| locatedAtSea |
Archipelago Sea
ⓘ
Baltic Sea ⓘ |
| locatedIn |
Archipelago Sea
ⓘ
Baltic Sea ⓘ Utö ⓘ |
| locatedInAdministrativeTerritory |
Pargas
ⓘ
linked to:
Pargas (Parainen)
Southwest Finland ⓘ |
| locatedInBodyOfWaterRegion |
outer Archipelago Sea
ⓘ
linked to:
Archipelago Sea
|
| locatedInTimeZone |
Eastern European Summer Time
ⓘ
Eastern European Time ⓘ |
| locatedNear | main shipping routes of the Baltic Sea ⓘ |
| locatedOnIsland | Utö ⓘ |
| material |
brick
ⓘ
stone ⓘ |
| navigationalRegion |
Baltic Sea main route
ⓘ
Gulf of Bothnia approaches ⓘ |
| openToPublic | yes ⓘ |
| operatedBy | Finnish Transport and Communications Agency Traficom ⓘ |
| ownedBy |
Republic of Finland
ⓘ
linked to:
Finland
|
| significance |
one of the oldest lighthouses in Finland
ⓘ
one of the southernmost lighthouses in Finland ⓘ |
| status | active ⓘ |
| tourism | popular attraction on Utö island ⓘ |
| usedFor |
coastal navigation
ⓘ
ice navigation guidance ⓘ |
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: Utö lighthouse Description of subject: Utö lighthouse is a historic beacon on the Finnish island of Utö in the Archipelago Sea, known as one of Finland’s oldest and southernmost lighthouses guiding Baltic Sea navigation.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.