BR Standard Class 5
E404433
The BR Standard Class 5 was a versatile British steam locomotive class introduced in the 1950s for mixed-traffic duties across the nationalised railway network.
All labels observed (2)
| Label | Occurrences |
|---|---|
| BR Standard Class 5 canonical | 2 |
| BR Standard Class 5MT | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3937572 — 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: BR Standard Class 5 Context triple: [LMS Jubilee Class, successorClass, BR Standard Class 5]
-
A.
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.
-
B.
LMS Royal Scot Class
The LMS Royal Scot Class was a class of British 4-6-0 steam locomotives built for the London, Midland and Scottish Railway, renowned for hauling express passenger services on the West Coast Main Line.
-
C.
LMS Stanier Class 5 4-6-0 "Black Five" locomotives
The LMS Stanier Class 5 4-6-0 "Black Five" locomotives are a highly successful and versatile class of British mixed-traffic steam engines designed by William Stanier for the London, Midland and Scottish Railway in the 1930s.
-
D.
LNER Class P2
The LNER Class P2 was a powerful class of 2-8-2 steam locomotives designed by Sir Nigel Gresley for hauling heavy express trains on the challenging Edinburgh–Aberdeen route in the 1930s.
-
E.
BR Standard Class 4 steam locomotives
BR Standard Class 4 steam locomotives are mid-20th-century British Railways mixed-traffic steam engines designed for versatility and efficiency on both passenger and freight 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: BR Standard Class 5 Target entity description: The BR Standard Class 5 was a versatile British steam locomotive class introduced in the 1950s for mixed-traffic duties across the nationalised railway network.
-
A.
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.
-
B.
LMS Royal Scot Class
The LMS Royal Scot Class was a class of British 4-6-0 steam locomotives built for the London, Midland and Scottish Railway, renowned for hauling express passenger services on the West Coast Main Line.
-
C.
LMS Stanier Class 5 4-6-0 "Black Five" locomotives
The LMS Stanier Class 5 4-6-0 "Black Five" locomotives are a highly successful and versatile class of British mixed-traffic steam engines designed by William Stanier for the London, Midland and Scottish Railway in the 1930s.
-
D.
LNER Class P2
The LNER Class P2 was a powerful class of 2-8-2 steam locomotives designed by Sir Nigel Gresley for hauling heavy express trains on the challenging Edinburgh–Aberdeen route in the 1930s.
-
E.
BR Standard Class 4 steam locomotives
BR Standard Class 4 steam locomotives are mid-20th-century British Railways mixed-traffic steam engines designed for versatility and efficiency on both passenger and freight services.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
British Railways Standard steam locomotive
ⓘ
steam locomotive class ⓘ |
| boilerPressure | 225 psi ⓘ |
| brPowerClass | 5MT ⓘ |
| buildPeriod | 1951–1957 ⓘ |
| configuration | tender locomotive ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| cylinderArrangement | outside cylinders ⓘ |
| cylinderCount | 2 ⓘ |
| designer |
British Railways Standardisation team
ⓘ
surface form:
British Railways Standardisation Team
R. A. Riddles ⓘ |
| driverDiameter | 6 ft ⓘ |
| fuelType | coal ⓘ |
| gauge | standard gauge ⓘ |
| inspiredBy |
LMS Stanier Class 5 4-6-0 "Black Five" locomotives
ⓘ
surface form:
LMS Stanier Class 5 4-6-0
|
| introduced | 1951 ⓘ |
| lengthOverBuffers | about 62 ft ⓘ |
| manufacturer |
Crewe Works
ⓘ
surface form:
BR Crewe Works
Darlington Works ⓘ
surface form:
BR Darlington Works
BR Derby Works ⓘ Doncaster Works ⓘ
surface form:
BR Doncaster Works
Swindon Works ⓘ
surface form:
BR Swindon Works
|
| nickName | Standard Five ⓘ |
| operator |
British Rail
ⓘ
surface form:
British Railways
|
| powerType | steam ⓘ |
| preservedUnits | several locomotives preserved ⓘ |
| primaryRole | mixed-traffic locomotive ⓘ |
| railwayNetwork |
British railway network
ⓘ
surface form:
British Railways national network
|
| routeAvailability | Route Availability 7 ⓘ |
| serviceEntry | early 1950s ⓘ |
| status | retired from regular mainline service ⓘ |
| tenderType |
BR1
ⓘ
BR1B ⓘ BR1C ⓘ BR1D ⓘ BR1F ⓘ BR1G ⓘ |
| totalProduced | 172 ⓘ |
| trackGauge | 1435 mm ⓘ |
| tractiveEffort | approximately 26,000 lbf ⓘ |
| UICClassification | 2′C h2 ⓘ |
| usedFor |
freight services
ⓘ
passenger services ⓘ |
| usedOnRegion |
Eastern Region
ⓘ
London Midland Region ⓘ Scottish Region ⓘ Southern Region ⓘ Western Region ⓘ |
| valveGear | Walschaerts ⓘ |
| wheelArrangement | 4-6-0 ⓘ |
| withdrawalPeriod | 1964–1968 ⓘ |
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: BR Standard Class 5 Description of subject: The BR Standard Class 5 was a versatile British steam locomotive class introduced in the 1950s for mixed-traffic duties across the nationalised railway network.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
BR Standard Class 5MT