Lock 45
E659623
Lock 45 is the final lock on Ontario’s Trent–Severn Waterway, located at Port Severn where the canal meets Georgian Bay.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lock 45 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7380920 — 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: Lock 45 Context triple: [Port Severn, hasLockNumber, Lock 45]
-
A.
Lock 21
Lock 21 is one of the numbered canal locks at Merrickville on Canada’s historic Rideau Canal system.
-
B.
Lock 22
Lock 22 is one of the numbered canal locks at Merrickville on Canada’s historic Rideau Canal waterway.
-
C.
Teston Lock
Teston Lock is a navigation lock on the River Medway in Kent, England, used to manage river levels and enable boat passage.
-
D.
Lock 11 and Weir
Lock 11 and Weir is a historic river navigation structure on the Murray River at Mildura, Australia, known for regulating water levels and enabling boat passage while serving as a popular local tourist attraction.
-
E.
The Lock
The Lock is a celebrated 1824 landscape painting by English Romantic artist John Constable, depicting rural life along the River Stour with dramatic naturalistic detail.
- 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: Lock 45 Target entity description: Lock 45 is the final lock on Ontario’s Trent–Severn Waterway, located at Port Severn where the canal meets Georgian Bay.
-
A.
Lock 21
Lock 21 is one of the numbered canal locks at Merrickville on Canada’s historic Rideau Canal system.
-
B.
Lock 22
Lock 22 is one of the numbered canal locks at Merrickville on Canada’s historic Rideau Canal waterway.
-
C.
Teston Lock
Teston Lock is a navigation lock on the River Medway in Kent, England, used to manage river levels and enable boat passage.
-
D.
Lock 11 and Weir
Lock 11 and Weir is a historic river navigation structure on the Murray River at Mildura, Australia, known for regulating water levels and enabling boat passage while serving as a popular local tourist attraction.
-
E.
The Lock
The Lock is a celebrated 1824 landscape painting by English Romantic artist John Constable, depicting rural life along the River Stour with dramatic naturalistic detail.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
canal infrastructure
ⓘ
navigation lock ⓘ |
| category |
Buildings and structures in Simcoe County
ⓘ
Locks on the Trent–Severn Waterway ⓘ Transport infrastructure in Ontario ⓘ |
| connectsTo |
Georgian Bay of Lake Huron
ⓘ
linked to:
Georgian Bay
|
| country | Canada ⓘ |
| hasAccess |
Georgian Bay
ⓘ
Trent–Severn canal system ⓘ
linked to:
Trent–Severn Waterway
|
| hasFunction | raises and lowers boats between the Trent–Severn Waterway and Georgian Bay ⓘ |
| hasLockNumber | 45 ⓘ |
| isEndpointOf |
Trent–Severn Waterway navigation route
ⓘ
linked to:
Trent–Severn Waterway
|
| locatedIn |
Ontario
ⓘ
Port Severn ⓘ |
| locatedInAdministrativeArea | Simcoe County ⓘ |
| locatedOnWaterBody | Severn River ⓘ |
| maintainedBy | Parks Canada Trent–Severn Waterway National Historic Site ⓘ |
| nearSettlement | Port Severn, Ontario ⓘ |
| operatedBy | Parks Canada ⓘ |
| ownedBy |
Government of Canada
ⓘ
linked to:
Canadian federal government (Ottawa)
|
| partOf | Trent–Severn Waterway ⓘ |
| positionInSystem | final lock on the Trent–Severn Waterway ⓘ |
| region | Central Ontario ⓘ |
| terminusRole | western terminus of the Trent–Severn Waterway ⓘ |
| tourismType | heritage canal attraction ⓘ |
| usedFor |
inland navigation
ⓘ
recreational boating ⓘ |
| waterwayConnection |
Georgian Bay
ⓘ
Trent–Severn Waterway ⓘ |
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: Lock 45 Description of subject: Lock 45 is the final lock on Ontario’s Trent–Severn Waterway, located at Port Severn where the canal meets Georgian Bay.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.