Sapperton Tunnel
E846167
Sapperton Tunnel is a historic canal tunnel in Gloucestershire, England, notable as one of the longest and most significant engineering works on the former Thames and Severn Canal.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Sapperton Tunnel canonical | 6 |
| Sapperton Tunnel (Thames and Severn Canal) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10175461 — 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: Sapperton Tunnel Context triple: [Thames and Severn Canal, hasPart, Sapperton Tunnel]
-
A.
Sapperton Tunnel
Sapperton Tunnel is a historic railway tunnel in Gloucestershire, England, carrying trains through the Cotswolds on the route between Swindon and Gloucester.
-
B.
Blisworth Tunnel
Blisworth Tunnel is one of the longest navigable canal tunnels in Britain, carrying the Grand Union Canal beneath the Northamptonshire countryside.
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C.
Braunston Tunnel
Braunston Tunnel is a long 19th-century canal tunnel in Northamptonshire, England, forming a key part of the historic Grand Union Canal route.
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D.
Cressbrook Tunnel
Cressbrook Tunnel is a former railway tunnel in Derbyshire, England, now used as part of the popular Monsal Trail walking and cycling route through the Peak District.
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E.
Telford Tunnel
Telford Tunnel is one of the two parallel canal tunnels at Harecastle on the Trent and Mersey Canal in Staffordshire, England, designed by engineer Thomas Telford to improve navigation capacity.
- 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: Sapperton Tunnel Target entity description: Sapperton Tunnel is a historic canal tunnel in Gloucestershire, England, notable as one of the longest and most significant engineering works on the former Thames and Severn Canal.
-
A.
Sapperton Tunnel
Sapperton Tunnel is a historic railway tunnel in Gloucestershire, England, carrying trains through the Cotswolds on the route between Swindon and Gloucester.
-
B.
Blisworth Tunnel
Blisworth Tunnel is one of the longest navigable canal tunnels in Britain, carrying the Grand Union Canal beneath the Northamptonshire countryside.
-
C.
Braunston Tunnel
Braunston Tunnel is a long 19th-century canal tunnel in Northamptonshire, England, forming a key part of the historic Grand Union Canal route.
-
D.
Cressbrook Tunnel
Cressbrook Tunnel is a former railway tunnel in Derbyshire, England, now used as part of the popular Monsal Trail walking and cycling route through the Peak District.
-
E.
Telford Tunnel
Telford Tunnel is one of the two parallel canal tunnels at Harecastle on the Trent and Mersey Canal in Staffordshire, England, designed by engineer Thomas Telford to improve navigation capacity.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
canal tunnel
ⓘ
historic structure ⓘ transport infrastructure ⓘ |
| associatedWith |
Thames–Severn waterway link between the River Thames and River Severn
ⓘ
linked to:
Thames and Severn Canal
|
| ceilingMaterial | brick lining in sections ⓘ |
| closedToNavigation | early 20th century ⓘ |
| constructionEnd | 1789 ⓘ |
| constructionMethod | sinking of multiple shafts along the line of the tunnel ⓘ |
| constructionStart | 1783 ⓘ |
| country | United Kingdom ⓘ |
| currentUse | not navigable ⓘ |
| designedFor | narrowboats and barges ⓘ |
| endPoint | Coates ⓘ |
| engineer |
John Priddy
ⓘ
Robert Whitworth ⓘ |
| geologicalContext | constructed through limestone of the Cotswolds ⓘ |
| hasFeature |
brick and stone portals
ⓘ
ventilation shafts ⓘ |
| hasHeritageInterest | industrial archaeology ⓘ |
| hasNoTowpath | true ⓘ |
| hasPortal |
eastern portal near Coates
ⓘ
western portal near Sapperton ⓘ |
| heritageStatus | scheduled monument ⓘ |
| historicalPeriod | Industrial Revolution ⓘ |
| historicalSignificance | key link in the first complete inland waterway between the Thames and Severn ⓘ |
| length |
about 2.37 miles
ⓘ
about 3,817 metres ⓘ about 4,171 yards ⓘ |
| locatedIn |
England
ⓘ
Gloucestershire ⓘ United Kingdom ⓘ |
| maximumBoatWidth | narrow canal craft ⓘ |
| near |
Coates village
ⓘ
Cotswold Canal Trust restoration projects ⓘ Sapperton village ⓘ
linked to:
Sapperton
|
| notableFor |
being one of the longest canal tunnels in Britain
ⓘ
significant 18th-century canal engineering ⓘ |
| opened | 1789 ⓘ |
| originalUse | navigation for barges on the Thames and Severn Canal ⓘ |
| owner | Canal & River Trust ⓘ |
| partOf | Thames and Severn Canal ⓘ |
| passesUnder |
Cotswold Hills
ⓘ
linked to:
Cotswold escarpment
|
| region | Cotswolds ⓘ |
| risk | structural deterioration ⓘ |
| startPoint | Sapperton ⓘ |
| status | disused ⓘ |
| transportMode | inland waterway transport ⓘ |
| waterway | Thames and Severn 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: Sapperton Tunnel Description of subject: Sapperton Tunnel is a historic canal tunnel in Gloucestershire, England, notable as one of the longest and most significant engineering works on the former Thames and Severn Canal.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Sapperton Tunnel