Bala Lake Railway
E253179
Bala Lake Railway is a narrow-gauge heritage railway in Gwynedd, Wales, that runs along the southern shore of Llyn Tegid (Bala Lake), offering scenic tourist rides on historic trains.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Bala Lake Railway canonical | 3 |
| Bala Lake Railway Company | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2297206 — 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: Bala Lake Railway Context triple: [Bala, hasRailwayHistory, Bala Lake Railway]
-
A.
Fils Valley Railway
The Fils Valley Railway is a major railway line in the German state of Baden-Württemberg that follows the Fils River, connecting important cities such as Stuttgart and Ulm across the Swabian Jura.
-
B.
Nilgiri Mountain Railway
The Nilgiri Mountain Railway is a historic narrow-gauge railway in southern India, famed for its steep rack-and-pinion route through the Nilgiri Hills and its designation as a UNESCO World Heritage Site.
-
C.
Darjeeling Himalayan Railway
The Darjeeling Himalayan Railway is a historic narrow-gauge mountain railway in India, famed for its scenic route through the Himalayas and its iconic steam-powered "toy train."
-
D.
Hukun railway
Hukun railway is a major Chinese rail line connecting Shanghai with Kunming, linking the country’s eastern coast to its southwestern interior.
-
E.
Savanna railway
The Savanna railway is a historic Colombian rail line that serves the Bogotá savanna region, including the town of Zipaquirá, and is now best known for its tourist and heritage train services.
- 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: Bala Lake Railway Target entity description: Bala Lake Railway is a narrow-gauge heritage railway in Gwynedd, Wales, that runs along the southern shore of Llyn Tegid (Bala Lake), offering scenic tourist rides on historic trains.
-
A.
Fils Valley Railway
The Fils Valley Railway is a major railway line in the German state of Baden-Württemberg that follows the Fils River, connecting important cities such as Stuttgart and Ulm across the Swabian Jura.
-
B.
Nilgiri Mountain Railway
The Nilgiri Mountain Railway is a historic narrow-gauge railway in southern India, famed for its steep rack-and-pinion route through the Nilgiri Hills and its designation as a UNESCO World Heritage Site.
-
C.
Darjeeling Himalayan Railway
The Darjeeling Himalayan Railway is a historic narrow-gauge mountain railway in India, famed for its scenic route through the Himalayas and its iconic steam-powered "toy train."
-
D.
Hukun railway
Hukun railway is a major Chinese rail line connecting Shanghai with Kunming, linking the country’s eastern coast to its southwestern interior.
-
E.
Savanna railway
The Savanna railway is a historic Colombian rail line that serves the Bogotá savanna region, including the town of Zipaquirá, and is now best known for its tourist and heritage train services.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
heritage railway
ⓘ
narrow-gauge railway ⓘ |
| alsoKnownAs | Rheilffordd Llyn Tegid ⓘ |
| builtOn | former Ruabon–Barmouth railway trackbed ⓘ |
| country | Wales ⓘ |
| focusesOn | preservation of Welsh narrow-gauge railway heritage ⓘ |
| gauge | 2 ft (610 mm) ⓘ |
| hasCarriages | heritage passenger coaches ⓘ |
| hasFacilities |
engine shed at Llanuwchllyn
ⓘ
workshops at Llanuwchllyn ⓘ |
| hasIntermediateStation |
Flag Halt(s)
ⓘ
Llangower ⓘ Pentrepiod ⓘ |
| hasLocomotiveCollectionFrom |
Dinorwic slate quarries
ⓘ
linked to:
Dinorwig Slate Quarry
Penrhyn slate quarries ⓘ
linked to:
Penrhyn Slate Quarry
|
| hasStation |
Bala (Pen-y-Bont) station
ⓘ
Llanuwchllyn station ⓘ |
| hasViewOf |
Aran mountains
ⓘ
linked to:
Aran range
Llyn Tegid ⓘ |
| heritageStatus | preserved railway ⓘ |
| languageRegion | Welsh-speaking area ⓘ |
| locatedIn | Gwynedd ⓘ |
| locatedNear | town of Bala ⓘ |
| locatedOnWaterbodyShore | Llyn Tegid ⓘ |
| nearbyAttraction |
Snowdonia National Park
ⓘ
linked to:
Snowdonia
|
| offers |
heritage train experiences
ⓘ
scenic train rides ⓘ |
| openedAsHeritageRailway | 1972 ⓘ |
| originalStandardGaugeOperator | Great Western Railway ⓘ |
| ownership |
Bala Lake Railway Company
ⓘ
linked to:
Bala Lake Railway
|
| preserves | historic narrow-gauge rolling stock ⓘ |
| primaryTraffic | tourist passengers ⓘ |
| primaryUse | tourist railway ⓘ |
| propulsion |
diesel locomotives
ⓘ
steam locomotives ⓘ |
| region |
Snowdonia area
ⓘ
linked to:
Snowdonia
|
| runsAlong |
Bala Lake
ⓘ
southern shore of Llyn Tegid ⓘ |
| safetySystem | staff and ticket / token-based procedures ⓘ |
| seasonalOperation | yes ⓘ |
| terminusStation |
Bala (Pen-y-Bont)
ⓘ
Llanuwchllyn ⓘ |
| tourismCategory | heritage attraction in Gwynedd ⓘ |
| trackConfiguration | single track ⓘ |
| trackGaugeType | minimum-gauge style ⓘ |
| trackLength | approximately 4.5 miles ⓘ |
| trackOwner |
Bala Lake Railway Company
ⓘ
linked to:
Bala Lake Railway
|
| website | https://bala-lake-railway.co.uk/ ⓘ |
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: Bala Lake Railway Description of subject: Bala Lake Railway is a narrow-gauge heritage railway in Gwynedd, Wales, that runs along the southern shore of Llyn Tegid (Bala Lake), offering scenic tourist rides on historic trains.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Bala Lake Railway
linked to: Bala Lake Railway