Lock O-4
E465037
Lock O-4 is one of the navigation locks on New York State’s Oswego Canal, used to raise and lower boats as they travel between the Erie Canal and Lake Ontario.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lock O-4 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4587862 — 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 O-4 Context triple: [Oswego Canal, hasLock, Lock O-4]
-
A.
Lock O-1
Lock O-1 is a navigation lock on New York State’s Oswego Canal that helps vessels transition between different water levels along the waterway.
-
B.
Lock O-3
Lock O-3 is one of the navigation locks on New York State’s Oswego Canal, used to raise and lower boats between different water levels along the waterway.
-
C.
Lock O-2
Lock O-2 is one of the navigation locks on New York State’s Oswego Canal, helping vessels transit between different water levels along the waterway.
-
D.
Wheeler Lock
Wheeler Lock is a navigation lock on the Tennessee River in northern Alabama that helps vessels bypass Wheeler Dam as part of the Tennessee Valley Authority’s waterway system.
-
E.
Teston Lock
Teston Lock is a navigation lock on the River Medway in Kent, England, used to manage river levels and enable boat passage.
- 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 O-4 Target entity description: Lock O-4 is one of the navigation locks on New York State’s Oswego Canal, used to raise and lower boats as they travel between the Erie Canal and Lake Ontario.
-
A.
Lock O-1
Lock O-1 is a navigation lock on New York State’s Oswego Canal that helps vessels transition between different water levels along the waterway.
-
B.
Lock O-3
Lock O-3 is one of the navigation locks on New York State’s Oswego Canal, used to raise and lower boats between different water levels along the waterway.
-
C.
Lock O-2
Lock O-2 is one of the navigation locks on New York State’s Oswego Canal, helping vessels transit between different water levels along the waterway.
-
D.
Wheeler Lock
Wheeler Lock is a navigation lock on the Tennessee River in northern Alabama that helps vessels bypass Wheeler Dam as part of the Tennessee Valley Authority’s waterway system.
-
E.
Teston Lock
Teston Lock is a navigation lock on the River Medway in Kent, England, used to manage river levels and enable boat passage.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
canal lock
ⓘ
navigation lock ⓘ |
| country | United States of America ⓘ |
| hasAccess |
Oswego Canal navigation channel
ⓘ
linked to:
Oswego Canal
|
| hasEngineeringStructure |
control mechanisms
ⓘ
gates ⓘ lock chamber ⓘ |
| hasFunction | water level control for vessels ⓘ |
| hasInfrastructureType | inland waterway lock ⓘ |
| isPartOfRoute |
Erie Canal–Lake Ontario route
ⓘ
linked to:
Oswego Canal
|
| locatedInHydrologicalBasin |
Lake Ontario basin
ⓘ
linked to:
Lake Ontario drainage basin
|
| locatedInJurisdiction |
State of New York
ⓘ
linked to:
New York State
|
| locatedOnWaterway | Oswego Canal ⓘ |
| operator | New York State Canal Corporation ⓘ |
| ownedBy |
State of New York
ⓘ
linked to:
New York State
|
| partOf |
New York State Barge Canal system
ⓘ
linked to:
New York State Canal System
New York State Canal System ⓘ Oswego Canal ⓘ |
| usedBy |
commercial vessels
ⓘ
recreational boats ⓘ |
| usedFor |
lowering boats
ⓘ
navigation between Erie Canal and Lake Ontario ⓘ raising boats ⓘ |
| waterwayConnects |
Erie Canal
ⓘ
Lake Ontario ⓘ |
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 O-4 Description of subject: Lock O-4 is one of the navigation locks on New York State’s Oswego Canal, used to raise and lower boats as they travel between the Erie Canal and Lake Ontario.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.