Vale of Rheidol Railway
E812869
The Vale of Rheidol Railway is a historic narrow-gauge steam railway in Ceredigion, Wales, running through the scenic Rheidol Valley between Aberystwyth and Devil's Bridge.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Vale of Rheidol Railway canonical | 11 |
| Rheidol Valley Railway | 1 |
| Vale of Rheidol Railway Company | 1 |
| Vale of Rheidol Railway Ltd | 1 |
| Vale of Rheidol Railway company | 1 |
| Vale of Rheidol Railway system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9664493 — 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: Vale of Rheidol Railway Context triple: [Aberystwyth railway station, hasHeritageConnection, Vale of Rheidol Railway]
-
A.
Welsh Highland Railway
The Welsh Highland Railway is a scenic narrow-gauge heritage railway in North Wales that runs through the mountainous landscapes of Snowdonia.
-
B.
Ffestiniog Railway
Ffestiniog Railway is a historic narrow-gauge heritage railway in North Wales, renowned as one of the oldest independent railway companies in the world and a popular tourist attraction through the Snowdonia landscape.
-
C.
Ebbw Valley Railway
The Ebbw Valley Railway is a passenger rail line in South Wales that connects communities in the Ebbw Valley with larger hubs such as Cardiff, supporting regional commuting and regeneration.
-
D.
Sirhowy Railway
The Sirhowy Railway was a historic Welsh railway line that played a key role in transporting coal and iron through the Sirhowy Valley during the industrial era.
-
E.
Barry Railway
Barry Railway was a historic Welsh railway company that played a key role in transporting coal and goods to and from Barry Docks.
- 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: Vale of Rheidol Railway Target entity description: The Vale of Rheidol Railway is a historic narrow-gauge steam railway in Ceredigion, Wales, running through the scenic Rheidol Valley between Aberystwyth and Devil's Bridge.
-
A.
Welsh Highland Railway
The Welsh Highland Railway is a scenic narrow-gauge heritage railway in North Wales that runs through the mountainous landscapes of Snowdonia.
-
B.
Ffestiniog Railway
Ffestiniog Railway is a historic narrow-gauge heritage railway in North Wales, renowned as one of the oldest independent railway companies in the world and a popular tourist attraction through the Snowdonia landscape.
-
C.
Ebbw Valley Railway
The Ebbw Valley Railway is a passenger rail line in South Wales that connects communities in the Ebbw Valley with larger hubs such as Cardiff, supporting regional commuting and regeneration.
-
D.
Sirhowy Railway
The Sirhowy Railway was a historic Welsh railway line that played a key role in transporting coal and iron through the Sirhowy Valley during the industrial era.
-
E.
Barry Railway
Barry Railway was a historic Welsh railway company that played a key role in transporting coal and goods to and from Barry Docks.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf | heritage railway ⓘ |
| connectsTo | Aberystwyth railway station ⓘ |
| country | Wales ⓘ |
| electrification | none ⓘ |
| followsRiver | River Rheidol ⓘ |
| followsValley | Rheidol Valley ⓘ |
| gauge |
1 ft 11+3⁄4 in
ⓘ
603 mm ⓘ |
| hasBridge | multiple river crossings on the River Rheidol ⓘ |
| hasDepot | Aberystwyth locomotive depot ⓘ |
| hasLocomotiveClass | Vale of Rheidol Railway 2-6-2T locomotives ⓘ |
| headquarters | Aberystwyth ⓘ |
| heritageDesignation | part of the Great Little Trains of Wales marketing group ⓘ |
| heritageStatus | preserved railway ⓘ |
| historicUse |
lead ore traffic
ⓘ
timber traffic ⓘ |
| landscapeType | upland valley ⓘ |
| languageRegion | Welsh-speaking area ⓘ |
| laterOperator |
British Rail
ⓘ
British Railways ⓘ
linked to:
British Rail
Cambrian Railways ⓘ Great Western Railway ⓘ |
| length |
approximately 11.75 miles
ⓘ
approximately 19 km ⓘ |
| locatedIn | Ceredigion ⓘ |
| notableFeature |
continuous steep gradients
ⓘ
sharp curves ⓘ |
| offersService | scenic railway journeys ⓘ |
| opened | 1902 ⓘ |
| originalOperator |
Vale of Rheidol Railway Company
ⓘ
linked to:
Vale of Rheidol Railway
|
| owner |
Vale of Rheidol Railway Ltd
ⓘ
linked to:
Vale of Rheidol Railway
|
| primaryUse | tourist passenger services ⓘ |
| propulsion | steam locomotives ⓘ |
| publicTransportConnection | National Rail services at Aberystwyth ⓘ |
| region | Mid Wales ⓘ |
| safetySystem | token-based single-line working ⓘ |
| seasonalOperation | primarily spring to autumn ⓘ |
| terminus |
Aberystwyth
ⓘ
Devil's Bridge ⓘ |
| tourismRole | major tourist attraction in Ceredigion ⓘ |
| touristAttractionFor |
Devil's Bridge waterfalls
ⓘ
linked to:
Devil's Bridge Falls
|
| trackConfiguration | single track ⓘ |
| trackGaugeCategory | narrow gauge ⓘ |
| traction | steam ⓘ |
| usesRollingStockType | narrow-gauge steam locomotives ⓘ |
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: Vale of Rheidol Railway Description of subject: The Vale of Rheidol Railway is a historic narrow-gauge steam railway in Ceredigion, Wales, running through the scenic Rheidol Valley between Aberystwyth and Devil's Bridge.
Referenced by (16)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Vale of Rheidol Railway
linked to: Vale of Rheidol Railway
linked to: Vale of Rheidol Railway
linked to: Vale of Rheidol Railway
subject linked to:
Capel Bangor
linked to: Vale of Rheidol Railway