Marsworth Bottom Lock
E1047844
Marsworth Bottom Lock is a canal lock situated at the junction of the Aylesbury Arm with the main Grand Union Canal in Buckinghamshire, England.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Marsworth Bottom Lock canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13493660 — 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: Marsworth Bottom Lock Context triple: [Aylesbury Arm, hasLock, Marsworth Bottom Lock]
-
A.
Catteshall Lock
Catteshall Lock is a historic navigation lock on the River Wey in Surrey, England, forming part of one of the country’s earliest commercial waterways.
-
B.
Rammey Marsh Lock
Rammey Marsh Lock is a lock on the River Lee Navigation in England, used to manage water levels and enable boat passage along the waterway.
-
C.
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.
-
D.
Barnes Mill Lock
Barnes Mill Lock is a historic navigation lock on the River Chelmer in Essex, England, used to manage water levels and enable boat passage along the waterway.
-
E.
Thurmaston Lock
Thurmaston Lock is a navigation lock on the River Soar in Leicestershire, England, used to manage water levels and enable boat passage along 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: Marsworth Bottom Lock Target entity description: Marsworth Bottom Lock is a canal lock situated at the junction of the Aylesbury Arm with the main Grand Union Canal in Buckinghamshire, England.
-
A.
Catteshall Lock
Catteshall Lock is a historic navigation lock on the River Wey in Surrey, England, forming part of one of the country’s earliest commercial waterways.
-
B.
Rammey Marsh Lock
Rammey Marsh Lock is a lock on the River Lee Navigation in England, used to manage water levels and enable boat passage along the waterway.
-
C.
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.
-
D.
Barnes Mill Lock
Barnes Mill Lock is a historic navigation lock on the River Chelmer in Essex, England, used to manage water levels and enable boat passage along the waterway.
-
E.
Thurmaston Lock
Thurmaston Lock is a navigation lock on the River Soar in Leicestershire, England, used to manage water levels and enable boat passage along the river.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf | canal lock ⓘ |
| administrativeTerritory | Buckinghamshire NERFINISHED ⓘ |
| connectsWaterLevel |
Aylesbury Arm level
ⓘ
main line of Grand Union Canal ⓘ |
| country | United Kingdom ⓘ |
| hasAccess | towpath ⓘ |
| hasFeature |
chamber
ⓘ
lock gates ⓘ paddles ⓘ |
| hasFunction | raise and lower boats between water levels ⓘ |
| hasNearbyFeature |
Marsworth Reservoirs
NERFINISHED
ⓘ
Marsworth lock flight NERFINISHED ⓘ |
| hasStructureType | pound lock ⓘ |
| heritageRegion | English canal system ⓘ |
| isLowestLockOf | Aylesbury Arm NERFINISHED ⓘ |
| junctionOf |
Aylesbury Arm
NERFINISHED
ⓘ
Grand Union Canal NERFINISHED ⓘ |
| locatedIn |
Buckinghamshire
ⓘ
England ⓘ Marsworth NERFINISHED ⓘ |
| navigationAuthority | Canal & River Trust NERFINISHED ⓘ |
| nearSettlement | Marsworth NERFINISHED ⓘ |
| onWaterway |
Aylesbury Arm
NERFINISHED
ⓘ
Grand Union Canal NERFINISHED ⓘ |
| operatedIn | freshwater environment ⓘ |
| partOf | Grand Union Canal lock system NERFINISHED ⓘ |
| region | South East England ⓘ |
| usedFor |
canal transport
ⓘ
inland navigation ⓘ recreational boating ⓘ |
| waterwayNetwork | Grand Union Canal network NERFINISHED ⓘ |
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: Marsworth Bottom Lock Description of subject: Marsworth Bottom Lock is a canal lock situated at the junction of the Aylesbury Arm with the main Grand Union Canal in Buckinghamshire, England.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.