British Rail Class 317
E678236
The British Rail Class 317 is a type of electric multiple unit train introduced in the early 1980s for commuter services in and around London and the East of England.
All labels observed (1)
| Label | Occurrences |
|---|---|
| British Rail Class 317 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7040287 — 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: British Rail Class 317 Context triple: [British Rail Class 745, replaced, British Rail Class 317]
-
A.
British Rail Class 323
The British Rail Class 323 is a type of electric multiple unit train widely used on suburban and commuter rail services in the West Midlands and North West England.
-
B.
British Rail Class 377
The British Rail Class 377 is a fleet of electric multiple-unit commuter trains widely used in southeast England, particularly by Govia Thameslink Railway services.
-
C.
British Rail Class 365
The British Rail Class 365 is a fleet of electric multiple-unit passenger trains built in the mid-1990s for suburban and regional services in southeast England and on the East Coast Main Line.
-
D.
British Rail Class 387
The British Rail Class 387 is a fleet of modern electric multiple-unit trains used on high-speed commuter and airport services in the UK.
-
E.
British Rail Class 373
The British Rail Class 373 is a high-speed electric multiple unit train designed for cross-Channel services through the Channel Tunnel, primarily operated by Eurostar between the UK and mainland Europe.
- 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: British Rail Class 317 Target entity description: The British Rail Class 317 is a type of electric multiple unit train introduced in the early 1980s for commuter services in and around London and the East of England.
-
A.
British Rail Class 323
The British Rail Class 323 is a type of electric multiple unit train widely used on suburban and commuter rail services in the West Midlands and North West England.
-
B.
British Rail Class 377
The British Rail Class 377 is a fleet of electric multiple-unit commuter trains widely used in southeast England, particularly by Govia Thameslink Railway services.
-
C.
British Rail Class 365
The British Rail Class 365 is a fleet of electric multiple-unit passenger trains built in the mid-1990s for suburban and regional services in southeast England and on the East Coast Main Line.
-
D.
British Rail Class 387
The British Rail Class 387 is a fleet of modern electric multiple-unit trains used on high-speed commuter and airport services in the UK.
-
E.
British Rail Class 373
The British Rail Class 373 is a high-speed electric multiple unit train designed for cross-Channel services through the Channel Tunnel, primarily operated by Eurostar between the UK and mainland Europe.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
British Rail electric multiple unit
ⓘ
electric multiple unit ⓘ |
| brakeType | air brakes ⓘ |
| builtAt | York Works NERFINISHED ⓘ |
| builtBy | British Rail Engineering Limited NERFINISHED ⓘ |
| carBodyConstruction | steel ⓘ |
| carLength | approximately 20 m ⓘ |
| collectionMethod | pantograph ⓘ |
| couplingType | Scharfenberg ⓘ |
| designedFor | commuter services ⓘ |
| designedUnder | British Rail Mark 3 design principles ⓘ |
| doorType | slam doors ⓘ |
| electricSystem | 25 kV AC overhead ⓘ |
| enteredService | 1983 ⓘ |
| family | Mark 3 EMU family NERFINISHED ⓘ |
| formation | 4-car unit ⓘ |
| gauge | standard gauge ⓘ |
| introduced |
1983
ⓘ
early 1980s ⓘ |
| laterDoorType | power-operated sliding doors ⓘ |
| maximumSpeed |
100 mph
ⓘ
161 km/h ⓘ |
| operator | British Rail NERFINISHED ⓘ |
| operatorRegion | National Rail network of Great Britain NERFINISHED ⓘ |
| powerType | electric ⓘ |
| primaryRegion |
East of England
NERFINISHED
ⓘ
London NERFINISHED ⓘ |
| refurbishedBy |
Abellio Greater Anglia
NERFINISHED
ⓘ
WAGN NERFINISHED ⓘ |
| refurbishmentFeatures |
improved interiors
ⓘ
new seating ⓘ passenger information systems ⓘ |
| replacedBy |
Class 379
NERFINISHED
ⓘ
Class 700 NERFINISHED ⓘ Class 720 NERFINISHED ⓘ |
| totalProduced | 72 units ⓘ |
| trackGauge | 1435 mm ⓘ |
| UICClassification | Bo′Bo′+2′2′+2′2′+Bo′Bo′ ⓘ |
| usedBy |
Abellio Greater Anglia
NERFINISHED
ⓘ
First Capital Connect NERFINISHED ⓘ London Overground NERFINISHED ⓘ Network SouthEast NERFINISHED ⓘ WAGN NERFINISHED ⓘ |
| usedOn |
Bedford to St Pancras services
ⓘ
Great Northern routes ⓘ West Anglia routes NERFINISHED ⓘ |
| withdrawalBegan | mid 2010s ⓘ |
| withdrawalCompleted | early 2020s ⓘ |
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: British Rail Class 317 Description of subject: The British Rail Class 317 is a type of electric multiple unit train introduced in the early 1980s for commuter services in and around London and the East of England.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
British Rail Class 745
subject surface form:
British Rail Class 720