Pratas Island Lighthouse
E341775
Pratas Island Lighthouse is a coastal navigational beacon located on Pratas Island in the South China Sea, serving to guide maritime traffic in the surrounding waters.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pratas Island Lighthouse canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3265828 — 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: Pratas Island Lighthouse Context triple: [Pratas Islands, hasLighthouse, Pratas Island Lighthouse]
-
A.
Capul Island lighthouse
Capul Island lighthouse is a historic Spanish-era navigational beacon in Northern Samar, Philippines, known for guiding ships through the treacherous San Bernardino Strait and offering panoramic coastal views.
-
B.
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.
-
C.
Yamba Lighthouse
Yamba Lighthouse is a coastal navigational beacon in Yamba, New South Wales, Australia, guiding vessels at the mouth of the Clarence River.
-
D.
Culebrita Lighthouse
Culebrita Lighthouse is a historic 19th-century Spanish-era lighthouse located on the small island of Culebrita off Puerto Rico, known for guiding ships through the Virgin Passage and for its scenic, now-ruined structure.
-
E.
St. Anastasia Island Lighthouse
St. Anastasia Island Lighthouse is a historic navigational beacon located on St. Anastasia Island off the coast of Bulgaria in the Black Sea.
- 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: Pratas Island Lighthouse Target entity description: Pratas Island Lighthouse is a coastal navigational beacon located on Pratas Island in the South China Sea, serving to guide maritime traffic in the surrounding waters.
-
A.
Capul Island lighthouse
Capul Island lighthouse is a historic Spanish-era navigational beacon in Northern Samar, Philippines, known for guiding ships through the treacherous San Bernardino Strait and offering panoramic coastal views.
-
B.
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.
-
C.
Yamba Lighthouse
Yamba Lighthouse is a coastal navigational beacon in Yamba, New South Wales, Australia, guiding vessels at the mouth of the Clarence River.
-
D.
Culebrita Lighthouse
Culebrita Lighthouse is a historic 19th-century Spanish-era lighthouse located on the small island of Culebrita off Puerto Rico, known for guiding ships through the Virgin Passage and for its scenic, now-ruined structure.
-
E.
St. Anastasia Island Lighthouse
St. Anastasia Island Lighthouse is a historic navigational beacon located on St. Anastasia Island off the coast of Bulgaria in the Black Sea.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
coastal lighthouse
ⓘ
lighthouse ⓘ navigational aid ⓘ |
| belongsToSystem | coastal navigation system of Pratas Island ⓘ |
| category |
Coastal lighthouses
ⓘ
Lighthouses in the South China Sea ⓘ |
| countryClaim |
Republic of China
ⓘ
surface form:
Republic of China (Taiwan)
|
| environment | marine environment ⓘ |
| function |
guiding maritime traffic
ⓘ
marine navigation ⓘ |
| geopoliticalContext | disputed area in the South China Sea ⓘ |
| hasLight | yes ⓘ |
| hasRole |
aid to navigation for commercial vessels
ⓘ
aid to navigation for fishing vessels ⓘ aid to navigation for military vessels ⓘ |
| locatedInBodyOfWater | South China Sea ⓘ |
| locatedNear | Pratas Island lagoon ⓘ |
| locatedOn |
Pratas Islands
ⓘ
surface form:
Pratas Island
|
| locatedOnReefOrIsland |
Dongsha Islands
ⓘ
surface form:
Pratas Island (Dongsha Island)
|
| name | Pratas Island Lighthouse self-link ⓘ |
| navigationArea |
South China Sea
ⓘ
surface form:
South China Sea shipping routes
|
| operationalStatus | active ⓘ |
| purpose | to ensure safe navigation in surrounding waters ⓘ |
| region | South China Sea ⓘ |
| structureType | navigational beacon ⓘ |
| surroundingWatersUse | international shipping lanes ⓘ |
| usedFor |
assisting in maritime route planning
ⓘ
marking coastline ⓘ warning ships of hazards ⓘ |
| visibilityPurpose | to be visible to ships at sea ⓘ |
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: Pratas Island Lighthouse Description of subject: Pratas Island Lighthouse is a coastal navigational beacon located on Pratas Island in the South China Sea, serving to guide maritime traffic in the surrounding waters.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.