LNER Class A4 4468 Mallard
E201549
LNER Class A4 4468 Mallard is a famous British steam locomotive best known for holding the world speed record for steam traction, set in 1938.
All labels observed (5)
| Label | Occurrences |
|---|---|
| LNER Class A4 4468 Mallard canonical | 4 |
| LNER 4468 Mallard | 1 |
| LNER Class A4 | 1 |
| LNER Class A4 Mallard | 1 |
| Mallard world steam speed record run | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1746640 — 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: LNER Class A4 4468 Mallard Context triple: [London and North Eastern Railway, notableLocomotive, LNER Class A4 4468 Mallard]
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A.
LNER Class A3 4472 Flying Scotsman
LNER Class A3 4472 Flying Scotsman is a famous British steam locomotive renowned for being one of the world’s most iconic express passenger engines and the first to officially reach 100 mph.
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B.
The Flying Scotsman
The Flying Scotsman was the nickname of Eric Liddell, the Scottish Olympic gold medalist sprinter and Christian missionary whose life inspired the film "Chariots of Fire."
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C.
LMS Jubilee Class
The LMS Jubilee Class was a class of British steam locomotives built in the 1930s for express passenger services on the London, Midland and Scottish Railway.
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D.
British Rail Class 47
The British Rail Class 47 is a widely used diesel-electric locomotive class introduced in the 1960s, notable for its extensive service across the UK rail network with both passenger and freight trains.
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E.
LMS Princess Royal Class
The LMS Princess Royal Class was a series of powerful British express passenger steam locomotives built in the 1930s for high-speed mainline services on the London, Midland and Scottish Railway.
- 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: LNER Class A4 4468 Mallard Target entity description: LNER Class A4 4468 Mallard is a famous British steam locomotive best known for holding the world speed record for steam traction, set in 1938.
-
A.
LNER Class A3 4472 Flying Scotsman
LNER Class A3 4472 Flying Scotsman is a famous British steam locomotive renowned for being one of the world’s most iconic express passenger engines and the first to officially reach 100 mph.
-
B.
The Flying Scotsman
The Flying Scotsman was the nickname of Eric Liddell, the Scottish Olympic gold medalist sprinter and Christian missionary whose life inspired the film "Chariots of Fire."
-
C.
LMS Jubilee Class
The LMS Jubilee Class was a class of British steam locomotives built in the 1930s for express passenger services on the London, Midland and Scottish Railway.
-
D.
British Rail Class 47
The British Rail Class 47 is a widely used diesel-electric locomotive class introduced in the 1960s, notable for its extensive service across the UK rail network with both passenger and freight trains.
-
E.
LMS Princess Royal Class
The LMS Princess Royal Class was a series of powerful British express passenger steam locomotives built in the 1930s for high-speed mainline services on the London, Midland and Scottish Railway.
- 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: LNER Class A4 4468 Mallard Description of subject: LNER Class A4 4468 Mallard is a famous British steam locomotive best known for holding the world speed record for steam traction, set in 1938.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: LNER Class A4 4468 Mallard
linked to: LNER Class A4 4468 Mallard
linked to: LNER Class A4 4468 Mallard
linked to: LNER Class A4 4468 Mallard