Shoal Tower
E511021
Shoal Tower is a historic 19th-century Martello tower in Kingston, Ontario, built as part of the city’s harbor defenses and now recognized as a UNESCO World Heritage Site component.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Shoal Tower canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5307624 — 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: Shoal Tower Context triple: [Kingston Fortifications, hasPart, Shoal Tower]
-
A.
Prince Rupert's Tower
Prince Rupert's Tower is a historic 18th-century lock-up in Everton, Liverpool, that has become an iconic symbol associated with Everton Football Club.
-
B.
Cabot Tower
Cabot Tower is a historic late-19th-century commemorative tower in Bristol, England, built to honor explorer John Cabot and offering panoramic views over the city.
-
C.
Landguard Point
Landguard Point is a prominent coastal headland and nature reserve at the mouth of the River Orwell and River Stour near Felixstowe in Suffolk, England, known for its historic fort and wildlife habitats.
-
D.
Rubh Re Lighthouse
Rubh Re Lighthouse is a coastal navigational beacon in Scotland, notable as part of the Stevenson family’s historic network of Scottish lighthouses.
-
E.
Scargo Tower
Scargo Tower is a historic stone observation tower in Dennis, Massachusetts, offering panoramic views of Cape Cod and Scargo Lake.
- 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: Shoal Tower Target entity description: Shoal Tower is a historic 19th-century Martello tower in Kingston, Ontario, built as part of the city’s harbor defenses and now recognized as a UNESCO World Heritage Site component.
-
A.
Prince Rupert's Tower
Prince Rupert's Tower is a historic 18th-century lock-up in Everton, Liverpool, that has become an iconic symbol associated with Everton Football Club.
-
B.
Cabot Tower
Cabot Tower is a historic late-19th-century commemorative tower in Bristol, England, built to honor explorer John Cabot and offering panoramic views over the city.
-
C.
Landguard Point
Landguard Point is a prominent coastal headland and nature reserve at the mouth of the River Orwell and River Stour near Felixstowe in Suffolk, England, known for its historic fort and wildlife habitats.
-
D.
Rubh Re Lighthouse
Rubh Re Lighthouse is a coastal navigational beacon in Scotland, notable as part of the Stevenson family’s historic network of Scottish lighthouses.
-
E.
Scargo Tower
Scargo Tower is a historic stone observation tower in Dennis, Massachusetts, offering panoramic views of Cape Cod and Scargo Lake.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
Martello tower
ⓘ
historic military fortification ⓘ |
| architecturalStyle | Martello tower design ⓘ |
| associatedWith |
British colonial military engineering
ⓘ
Rideau Canal defense system NERFINISHED ⓘ |
| category | 19th-century fortification ⓘ |
| constructionEndDate | 1847 ⓘ |
| constructionStartDate | 1846 ⓘ |
| coordinates | approximately 44.229°N 76.476°W ⓘ |
| country | Canada ⓘ |
| elevationAboveSeaLevel | approximately 0 metres ⓘ |
| function | to defend Kingston Harbour and naval dockyard ⓘ |
| hasPart |
circular masonry tower
ⓘ
gun platform ⓘ thick defensive walls ⓘ |
| hasType |
cylindrical tower
ⓘ
offshore fortification ⓘ |
| heritageCriteria | cultural ⓘ |
| heritageDesignation |
National Historic Site of Canada
ⓘ
UNESCO World Heritage Site component NERFINISHED ⓘ |
| heritageStatus | World Heritage Site component ⓘ |
| inception | 1840s ⓘ |
| locatedInAdministrativeTerritorialEntity |
City of Kingston
NERFINISHED
ⓘ
Province of Ontario NERFINISHED ⓘ |
| locatedInMetropolitanArea | Kingston metropolitan area NERFINISHED ⓘ |
| locatedInOrOn | Kingston waterfront NERFINISHED ⓘ |
| locatedInWaterBody | Kingston Harbour NERFINISHED ⓘ |
| locatedNear |
Fort Frederick
NERFINISHED
ⓘ
Fort Henry NERFINISHED ⓘ Royal Military College of Canada NERFINISHED ⓘ |
| location | Kingston, Ontario, Canada NERFINISHED ⓘ |
| materialUsed | stone ⓘ |
| namedAfter | shoal on which it is built ⓘ |
| openToPublic | yes ⓘ |
| operator | Parks Canada NERFINISHED ⓘ |
| partOf |
Kingston harbour defenses
NERFINISHED
ⓘ
Rideau Canal and Kingston Fortifications World Heritage Site NERFINISHED ⓘ defensive system protecting Kingston and the Rideau Canal entrance ⓘ |
| protectionStatus | protected historic site ⓘ |
| region | Eastern Ontario NERFINISHED ⓘ |
| significantPeriod | 19th century ⓘ |
| touristAttraction | yes ⓘ |
| use |
coastal defense
ⓘ
harbour defense ⓘ |
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: Shoal Tower Description of subject: Shoal Tower is a historic 19th-century Martello tower in Kingston, Ontario, built as part of the city’s harbor defenses and now recognized as a UNESCO World Heritage Site component.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
Kingston Fortifications (Rideau Canal and Kingston Fortifications UNESCO World Heritage Site component)
→
hasPart
→
Shoal Tower
ⓘ
subject surface form:
Kingston Fortifications