Class 57 diesel locomotive
E614016
The Class 57 diesel locomotive is a British mainline locomotive type, rebuilt from older Class 47s, widely used for both passenger and freight services including prestigious sleeper and charter trains.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Class 57 diesel locomotive canonical | 1 |
| Class 57 locomotives | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6720095 — 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: Class 57 diesel locomotive Context triple: [Night Riviera sleeper service, operatedBy, Class 57 diesel locomotive]
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A.
Class 67 locomotive
The Class 67 locomotive is a type of high-speed diesel-electric locomotive used on the British railway network for both passenger and freight services.
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B.
Class 68 locomotive
The Class 68 locomotive is a modern British diesel-electric locomotive used for passenger and freight services, known for its high performance, reliability, and distinctive angular design.
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C.
EMD GP7 locomotive
The EMD GP7 locomotive is a widely used four-axle diesel-electric road switcher introduced in the late 1940s that helped usher in the transition from steam to diesel power on North American railroads.
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D.
EMD GP9 locomotive
The EMD GP9 locomotive is a widely used four-axle diesel-electric road switcher built in the 1950s that became one of North America's most successful and versatile freight and passenger locomotives.
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E.
EMD SD40-2 locomotive
The EMD SD40-2 locomotive is a highly successful and widely used North American diesel-electric freight locomotive introduced in the 1970s, known for its reliability, modular design, and long service life.
- 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: Class 57 diesel locomotive Target entity description: The Class 57 diesel locomotive is a British mainline locomotive type, rebuilt from older Class 47s, widely used for both passenger and freight services including prestigious sleeper and charter trains.
-
A.
Class 67 locomotive
The Class 67 locomotive is a type of high-speed diesel-electric locomotive used on the British railway network for both passenger and freight services.
-
B.
Class 68 locomotive
The Class 68 locomotive is a modern British diesel-electric locomotive used for passenger and freight services, known for its high performance, reliability, and distinctive angular design.
-
C.
EMD GP7 locomotive
The EMD GP7 locomotive is a widely used four-axle diesel-electric road switcher introduced in the late 1940s that helped usher in the transition from steam to diesel power on North American railroads.
-
D.
EMD GP9 locomotive
The EMD GP9 locomotive is a widely used four-axle diesel-electric road switcher built in the 1950s that became one of North America's most successful and versatile freight and passenger locomotives.
-
E.
EMD SD40-2 locomotive
The EMD SD40-2 locomotive is a highly successful and widely used North American diesel-electric freight locomotive introduced in the 1970s, known for its reliability, modular design, and long service life.
- F. None of above. chosen
Statements (47)
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: Class 57 diesel locomotive Description of subject: The Class 57 diesel locomotive is a British mainline locomotive type, rebuilt from older Class 47s, widely used for both passenger and freight services including prestigious sleeper and charter trains.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Class 57 diesel locomotive