Mountfield Tunnel
E572982
Mountfield Tunnel is a railway tunnel in East Sussex, England, carrying the Tonbridge–Hastings line through the countryside near the village of Mountfield.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mountfield Tunnel canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6173313 — 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: Mountfield Tunnel Context triple: [Tonbridge–Hastings railway, hasStructure, Mountfield Tunnel]
-
A.
Cosgrove Tunnel
Cosgrove Tunnel is a major water-supply conduit in Massachusetts that carries drinking water from the Wachusett Reservoir toward the Boston metropolitan area.
-
B.
Blea Moor Tunnel
Blea Moor Tunnel is a major railway tunnel in North Yorkshire, England, carrying the Settle–Carlisle line beneath Blea Moor in the Yorkshire Dales.
-
C.
Butterley Tunnel
Butterley Tunnel is a historic 18th-century canal tunnel in Derbyshire, England, renowned as a major engineering work of the early British canal era.
-
D.
Malpas Tunnel
Malpas Tunnel is a historic canal tunnel in southern France, notable as one of the first navigable tunnels built for the Canal du Midi in the 17th century.
-
E.
Harecastle Tunnel
Harecastle Tunnel is a historic and notoriously long canal tunnel in Staffordshire, England, known for its low, narrow passage and role in improving industrial-era transport on the Trent and Mersey Canal.
- 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: Mountfield Tunnel Target entity description: Mountfield Tunnel is a railway tunnel in East Sussex, England, carrying the Tonbridge–Hastings line through the countryside near the village of Mountfield.
-
A.
Cosgrove Tunnel
Cosgrove Tunnel is a major water-supply conduit in Massachusetts that carries drinking water from the Wachusett Reservoir toward the Boston metropolitan area.
-
B.
Blea Moor Tunnel
Blea Moor Tunnel is a major railway tunnel in North Yorkshire, England, carrying the Settle–Carlisle line beneath Blea Moor in the Yorkshire Dales.
-
C.
Butterley Tunnel
Butterley Tunnel is a historic 18th-century canal tunnel in Derbyshire, England, renowned as a major engineering work of the early British canal era.
-
D.
Malpas Tunnel
Malpas Tunnel is a historic canal tunnel in southern France, notable as one of the first navigable tunnels built for the Canal du Midi in the 17th century.
-
E.
Harecastle Tunnel
Harecastle Tunnel is a historic and notoriously long canal tunnel in Staffordshire, England, known for its low, narrow passage and role in improving industrial-era transport on the Trent and Mersey Canal.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
railway infrastructure
ⓘ
railway tunnel ⓘ |
| carries | Tonbridge–Hastings line NERFINISHED ⓘ |
| country | England ⓘ |
| hasAccess | railway maintenance personnel only ⓘ |
| hasElectrification | third rail electrification on Tonbridge–Hastings line ⓘ |
| hasFunction | to carry trains through a hillside or ridge near Mountfield ⓘ |
| hasOperator | train operating companies serving the Tonbridge–Hastings line ⓘ |
| hasOwner | Network Rail NERFINISHED ⓘ |
| hasTrackGauge | standard gauge ⓘ |
| hasTransportMode | rail ⓘ |
| isBelow | ground level ⓘ |
| isOn | rail network of Great Britain NERFINISHED ⓘ |
| isPartOfRouteBetween |
Hastings
NERFINISHED
ⓘ
Tonbridge NERFINISHED ⓘ |
| isStructureType | tunnel ⓘ |
| isUsedBy |
freight trains
ⓘ
passenger trains ⓘ |
| locatedIn |
East Sussex
ⓘ
Rother District NERFINISHED ⓘ South East England ⓘ countryside near Mountfield ⓘ |
| locatedNear | Mountfield NERFINISHED ⓘ |
| partOf | Tonbridge–Hastings railway NERFINISHED ⓘ |
| usedFor | rail transport ⓘ |
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: Mountfield Tunnel Description of subject: Mountfield Tunnel is a railway tunnel in East Sussex, England, carrying the Tonbridge–Hastings line through the countryside near the village of Mountfield.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.