Fort Ussher
E934356
Fort Ussher is a historic coastal fortification in Accra, Ghana, built by European traders during the colonial era and later used as a prison.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fort Ussher canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11574589 — 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: Fort Ussher Context triple: [Ussher Fort, namedAfter, Fort Ussher]
-
A.
Navan Fort
Navan Fort is a major ancient ceremonial and royal site in Northern Ireland, traditionally associated with the kings of Ulster and Irish mythology.
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B.
Fort of Laoghaire
Fort of Laoghaire is the English meaning of the Irish place name Dún Laoghaire, referring to the historic coastal town and harbor near Dublin, Ireland.
-
C.
Enniskillen Castle
Enniskillen Castle is a historic riverside fortress in Enniskillen, Northern Ireland, now home to museums showcasing the region’s military and local history.
-
D.
Belfast Castle
Belfast Castle is a 19th-century Scottish baronial-style mansion overlooking Belfast Lough, known as a popular historic attraction and event venue in Northern Ireland.
-
E.
Blackrock Castle
Blackrock Castle is a historic riverside fortification near Cork City that now serves as an observatory and science centre open to the public.
- 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: Fort Ussher Target entity description: Fort Ussher is a historic coastal fortification in Accra, Ghana, built by European traders during the colonial era and later used as a prison.
-
A.
Navan Fort
Navan Fort is a major ancient ceremonial and royal site in Northern Ireland, traditionally associated with the kings of Ulster and Irish mythology.
-
B.
Fort of Laoghaire
Fort of Laoghaire is the English meaning of the Irish place name Dún Laoghaire, referring to the historic coastal town and harbor near Dublin, Ireland.
-
C.
Enniskillen Castle
Enniskillen Castle is a historic riverside fortress in Enniskillen, Northern Ireland, now home to museums showcasing the region’s military and local history.
-
D.
Belfast Castle
Belfast Castle is a 19th-century Scottish baronial-style mansion overlooking Belfast Lough, known as a popular historic attraction and event venue in Northern Ireland.
-
E.
Blackrock Castle
Blackrock Castle is a historic riverside fortification near Cork City that now serves as an observatory and science centre open to the public.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
coastal fortification
ⓘ
former prison ⓘ fort ⓘ historic site ⓘ |
| associatedWith |
European traders
ⓘ
Gold Coast colony ⓘ
linked to:
Gold Coast Colony
history of slavery and forced labor on the Gold Coast ⓘ trans-Atlantic trade ⓘ |
| builtFor | European trade on the Gold Coast ⓘ |
| category |
Buildings and structures in Accra
ⓘ
Forts in Ghana ⓘ Tourist attractions in Accra ⓘ World Heritage Sites in Ghana ⓘ |
| continent | Africa ⓘ |
| country | Ghana ⓘ |
| governingBody |
Ghana Museums and Monuments Board
ⓘ
Government of Ghana ⓘ |
| hasCondition | partially deteriorated ⓘ |
| hasFeature |
bastions
ⓘ
courtyard ⓘ perimeter walls ⓘ |
| hasFunction |
coastal defense
ⓘ
defensive structure ⓘ |
| heritageCriteria | UNESCO cultural criteria (ii)(iv)(vi) ⓘ |
| heritageDesignation | UNESCO World Heritage Site component ⓘ |
| heritageStatus | part of UNESCO World Heritage Site Forts and Castles, Volta, Greater Accra, Central and Western Regions ⓘ |
| historicalPeriod | colonial era ⓘ |
| locatedIn |
Accra
ⓘ
Ghana ⓘ Greater Accra Region ⓘ Usshertown ⓘ |
| locatedOn |
Atlantic Ocean coast
ⓘ
linked to:
Atlantic coast
Gulf of Guinea coast ⓘ
linked to:
Guinea Coast
|
| material |
masonry
ⓘ
stone ⓘ |
| nearby |
James Fort
ⓘ
Jamestown ⓘ Lighthouse at Jamestown ⓘ
linked to:
Jamestown Lighthouse
|
| partOf |
Ghanaian coastal forts and castles
ⓘ
linked to:
Forts and Castles of Ghana
historic centre of Accra ⓘ |
| significance |
example of European coastal fortifications in West Africa
ⓘ
part of the historical urban fabric of Accra ⓘ |
| usedAs |
administrative post
ⓘ
prison ⓘ trading post ⓘ |
| usedBy |
colonial authorities
ⓘ
post-independence Ghanaian authorities as a prison ⓘ |
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: Fort Ussher Description of subject: Fort Ussher is a historic coastal fortification in Accra, Ghana, built by European traders during the colonial era and later used as a prison.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.