Ponders End Lock
E901912
Ponders End Lock is a canal lock on the River Lee Navigation in North London, used to manage water levels and enable boat passage along the waterway.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ponders End Lock canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T10976015 — 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: Ponders End Lock Context triple: [Lee Navigation, hasLock, Ponders End Lock]
-
A.
Sandford Lock
Sandford Lock is a navigation lock on the River Chelmer in Essex, England, used to manage water levels and enable boat passage along the river.
-
B.
Saltersford Lock
Saltersford Lock is a navigation lock on the River Weaver in Cheshire, England, used to manage water levels and enable boat passage along the river.
-
C.
Allington Lock
Allington Lock is a key navigation and flood-control lock on the River Medway in Kent, England, marking the tidal limit of the river.
-
D.
Hunts Lock
Hunts Lock is a navigation lock on the River Weaver in Cheshire, England, used to manage water levels and allow boats to pass along the river.
-
E.
Sunbury Lock
Sunbury Lock is a lock on the River Thames in England, used to manage water levels and enable boats to navigate between different stretches of the river.
- 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: Ponders End Lock Target entity description: Ponders End Lock is a canal lock on the River Lee Navigation in North London, used to manage water levels and enable boat passage along the waterway.
-
A.
Sandford Lock
Sandford Lock is a navigation lock on the River Chelmer in Essex, England, used to manage water levels and enable boat passage along the river.
-
B.
Saltersford Lock
Saltersford Lock is a navigation lock on the River Weaver in Cheshire, England, used to manage water levels and enable boat passage along the river.
-
C.
Allington Lock
Allington Lock is a key navigation and flood-control lock on the River Medway in Kent, England, marking the tidal limit of the river.
-
D.
Hunts Lock
Hunts Lock is a navigation lock on the River Weaver in Cheshire, England, used to manage water levels and allow boats to pass along the river.
-
E.
Sunbury Lock
Sunbury Lock is a lock on the River Thames in England, used to manage water levels and enable boats to navigate between different stretches of the river.
- F. None of above. chosen
Statements (35)
| Predicate | Object |
|---|---|
| instanceOf |
canal lock
ⓘ
navigation lock ⓘ |
| accessibleFor |
cyclists
ⓘ
walkers ⓘ |
| connectsSections | different pound levels of the River Lee Navigation ⓘ |
| crossedBy | bridges for road and pedestrian traffic ⓘ |
| enables | boat passage ⓘ |
| hasFunction | to raise and lower boats between different water levels ⓘ |
| hasGates | pair of mitre gates at each end ⓘ |
| hasHeritageValue | historic inland waterway infrastructure ⓘ |
| hasNavigationAuthority | Canal & River Trust ⓘ |
| hasNearbyFeature | industrial and residential areas of Ponders End ⓘ |
| hasNumber | 13 ⓘ |
| hasStructureType | pound lock ⓘ |
| hasTowpath | public towpath along the River Lee Navigation ⓘ |
| hasUse |
commercial navigation
ⓘ
recreational boating ⓘ |
| isPartOfRoute | inland waterway route between Hertfordshire and the Thames ⓘ |
| locatedIn |
London Borough of Enfield
ⓘ
North London ⓘ Ponders End ⓘ |
| locatedInCountry |
England
ⓘ
United Kingdom ⓘ |
| locatedOnWaterway | River Lee Navigation ⓘ |
| lockNumberOnWaterway | Lock No. 13 on the River Lee Navigation ⓘ |
| maintainedBy | Canal & River Trust ⓘ |
| manages | water levels on the River Lee Navigation ⓘ |
| near | Ponders End railway station ⓘ |
| partOf |
Lee Valley waterway network
ⓘ
linked to:
River Lea Navigation
|
| region | Lee Valley ⓘ |
| usedFor |
angling access
ⓘ
inland water transport ⓘ leisure cruising ⓘ |
| usedSince | industrial era of London waterways ⓘ |
| waterwaySystem | Lee Navigation system ⓘ |
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: Ponders End Lock Description of subject: Ponders End Lock is a canal lock on the River Lee Navigation in North London, used to manage water levels and enable boat passage along the waterway.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.