Lock 7 of the Welland Canal
E829958
Lock 7 of the Welland Canal is one of the canal’s flight locks near Thorold, Ontario, used to raise and lower ships navigating the elevation change between Lake Ontario and Lake Erie.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lock 7 of the Welland Canal canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T9916502 — 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 7 of the Welland Canal Context triple: [Thorold, hasLandmark, Lock 7 of the Welland Canal]
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A.
Erie Canal Lock E-7
Erie Canal Lock E-7 is a navigation lock on the Erie Canal located in Waterford, New York, helping vessels transition between different water levels near the canal’s eastern terminus.
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B.
Erie Canal Lock E-6
Erie Canal Lock E-6 is a navigation lock on the Erie Canal located in Waterford, New York, that helps vessels transition between different water levels along the canal system.
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C.
Erie Canal Lock E-2
Erie Canal Lock E-2 is a canal lock on the Erie Canal located in Waterford, New York, serving as part of the eastern entrance series of locks that raise boats from the Hudson River into the canal system.
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D.
Erie Canal Lock 17
Erie Canal Lock 17 is a historic and still-operational lock on the Erie Canal notable for its high lift and engineering significance near Little Falls, New York.
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E.
Lock 1 of the Trent–Severn Waterway
Lock 1 of the Trent–Severn Waterway is the first lock on Ontario’s historic Trent–Severn canal system, situated at the entrance to the Murray Canal and serving as a key control point for vessel navigation between Lake Ontario and the inland waterway network.
- 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 7 of the Welland Canal Target entity description: Lock 7 of the Welland Canal is one of the canal’s flight locks near Thorold, Ontario, used to raise and lower ships navigating the elevation change between Lake Ontario and Lake Erie.
-
A.
Erie Canal Lock E-7
Erie Canal Lock E-7 is a navigation lock on the Erie Canal located in Waterford, New York, helping vessels transition between different water levels near the canal’s eastern terminus.
-
B.
Erie Canal Lock E-6
Erie Canal Lock E-6 is a navigation lock on the Erie Canal located in Waterford, New York, that helps vessels transition between different water levels along the canal system.
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C.
Erie Canal Lock E-2
Erie Canal Lock E-2 is a canal lock on the Erie Canal located in Waterford, New York, serving as part of the eastern entrance series of locks that raise boats from the Hudson River into the canal system.
-
D.
Erie Canal Lock 17
Erie Canal Lock 17 is a historic and still-operational lock on the Erie Canal notable for its high lift and engineering significance near Little Falls, New York.
-
E.
Lock 1 of the Trent–Severn Waterway
Lock 1 of the Trent–Severn Waterway is the first lock on Ontario’s historic Trent–Severn canal system, situated at the entrance to the Murray Canal and serving as a key control point for vessel navigation between Lake Ontario and the inland waterway network.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
canal lock
ⓘ
infrastructure ⓘ |
| connects |
downbound reach of the Welland Canal
ⓘ
upbound reach of the Welland Canal ⓘ |
| connectsWaterwaySystem |
Great Lakes–St. Lawrence Seaway
ⓘ
linked to:
Great Lakes–St. Lawrence system
|
| country | Canada ⓘ |
| function |
enable navigation between Lake Ontario and Lake Erie
ⓘ
lower ships ⓘ raise ships ⓘ |
| hasFeature |
access road
ⓘ
bypass channel ⓘ concrete lock chamber ⓘ control tower ⓘ emergency stop mechanisms ⓘ mooring bollards ⓘ navigation lights ⓘ public viewing area ⓘ safety railings ⓘ ship tie-up walls ⓘ signal system ⓘ steel lock gates ⓘ water level control system ⓘ |
| locatedIn |
Canada
ⓘ
Ontario ⓘ Thorold, Ontario ⓘ
linked to:
Thorold, Ontario, Canada
|
| locatedOn |
Welland Canal Parkway corridor
ⓘ
linked to:
Welland Canal Parkway Trail
|
| near |
Lock 6 of the Welland Canal
ⓘ
Lock 8 of the Welland Canal ⓘ Niagara Escarpment ⓘ Thorold Tunnel ⓘ |
| openToTraffic |
Canadian-flag ships
ⓘ
commercial vessels ⓘ foreign-flag ships ⓘ |
| operator | St. Lawrence Seaway Management Corporation ⓘ |
| ownedBy |
Government of Canada
ⓘ
linked to:
Canadian federal government (Ottawa)
|
| partOf |
Niagara Peninsula transportation infrastructure
ⓘ
St. Lawrence Seaway ⓘ
linked to:
Great Lakes waterway
Welland Canal ⓘ flight locks of the Welland Canal ⓘ |
| purpose | overcome elevation change between Lake Ontario and Lake Erie ⓘ |
| regionServed |
Great Lakes shipping
ⓘ
North American inland waterway system ⓘ
linked to:
Great Lakes–St. Lawrence system
|
| seasonalOperation | navigation season of the St. Lawrence Seaway ⓘ |
| usedFor |
bulk commodity transport
ⓘ
cargo transport ⓘ commercial shipping ⓘ |
| waterway | Welland Canal ⓘ |
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 7 of the Welland Canal Description of subject: Lock 7 of the Welland Canal is one of the canal’s flight locks near Thorold, Ontario, used to raise and lower ships navigating the elevation change between Lake Ontario and Lake Erie.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.