Tom Rolt
E245393
Tom Rolt is a steam locomotive on the preserved narrow-gauge Talyllyn Railway in Wales, named after railway preservation pioneer L.T.C. Rolt.
All labels observed (3)
| Label | Occurrences |
|---|---|
| L. T. C. Rolt | 1 |
| Tom Rolt canonical | 1 |
| railway preservation pioneer L. T. C. Rolt | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2219261 — 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: Tom Rolt Context triple: [Talyllyn Railway, hasLocomotive, Tom Rolt]
-
A.
Sir Ronald Davison
Sir Ronald Davison was a prominent New Zealand jurist who served as Chief Justice and played a key role in the country’s legal system in the late 20th century.
-
B.
Harry Aitken
Harry Aitken was an early American film producer and studio executive best known for backing landmark and controversial silent-era epics such as D. W. Griffith’s "The Birth of a Nation."
-
C.
Ivan Atkinson
Ivan Atkinson is a British film producer and screenwriter best known for his frequent collaborations with director Guy Ritchie on crime and action films.
-
D.
Thomas Davison
Thomas Davison was a 19th-century British printer and publisher best known for issuing the first edition of Lord Byron’s poem "Don Juan."
-
E.
Russell Carhouse
Russell Carhouse is a major Toronto Transit Commission streetcar maintenance and storage facility located in Toronto, Canada.
- 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: Tom Rolt Target entity description: Tom Rolt is a steam locomotive on the preserved narrow-gauge Talyllyn Railway in Wales, named after railway preservation pioneer L.T.C. Rolt.
-
A.
Sir Ronald Davison
Sir Ronald Davison was a prominent New Zealand jurist who served as Chief Justice and played a key role in the country’s legal system in the late 20th century.
-
B.
Harry Aitken
Harry Aitken was an early American film producer and studio executive best known for backing landmark and controversial silent-era epics such as D. W. Griffith’s "The Birth of a Nation."
-
C.
Ivan Atkinson
Ivan Atkinson is a British film producer and screenwriter best known for his frequent collaborations with director Guy Ritchie on crime and action films.
-
D.
Thomas Davison
Thomas Davison was a 19th-century British printer and publisher best known for issuing the first edition of Lord Byron’s poem "Don Juan."
-
E.
Russell Carhouse
Russell Carhouse is a major Toronto Transit Commission streetcar maintenance and storage facility located in Toronto, Canada.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
heritage railway locomotive
ⓘ
narrow-gauge locomotive ⓘ steam locomotive ⓘ |
| basedAtDepot | Pendre Works ⓘ |
| category |
Talyllyn Railway locomotives
ⓘ
heritage railway steam locomotives in the United Kingdom ⓘ narrow gauge steam locomotives in Wales ⓘ |
| country | United Kingdom ⓘ |
| gauge |
2 ft 3 in
ⓘ
686 mm ⓘ |
| hasLocation |
Talyllyn Railway, Tywyn, Wales
ⓘ
linked to:
Talyllyn Railway
|
| heritageStatus | preserved locomotive ⓘ |
| locatedIn |
Gwynedd
ⓘ
Talyllyn Railway ⓘ Tywyn ⓘ United Kingdom ⓘ Wales ⓘ |
| namedAfter |
L. T. C. Rolt
ⓘ
linked to:
Tom Rolt
railway preservation pioneer L. T. C. Rolt ⓘ
linked to:
Tom Rolt
|
| operatesOnLine | Talyllyn Railway ⓘ |
| operator |
Talyllyn Railway Company
ⓘ
linked to:
Talyllyn Railway
|
| powerType | steam ⓘ |
| railwayPreservationContext | preserved narrow-gauge railway ⓘ |
| trackGaugeType | narrow gauge ⓘ |
| usedFor |
heritage passenger services
ⓘ
tourist trains ⓘ |
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: Tom Rolt Description of subject: Tom Rolt is a steam locomotive on the preserved narrow-gauge Talyllyn Railway in Wales, named after railway preservation pioneer L.T.C. Rolt.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Tom Rolt
linked to: Tom Rolt