Class 156 diesel multiple unit
E555702
The Class 156 diesel multiple unit is a British two-car regional train type introduced in the late 1980s for local and medium-distance passenger services.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Class 156 diesel multiple unit canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5842017 — 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 156 diesel multiple unit Context triple: [Central Trains, operatedRollingStockType, Class 156 diesel multiple unit]
-
A.
Class 150 diesel multiple unit
The Class 150 diesel multiple unit is a British two- or three-car regional passenger train introduced in the 1980s and widely used on local and suburban services across the UK rail network.
-
B.
Class 153 diesel multiple unit
The Class 153 diesel multiple unit is a single-car British regional train used primarily for local and rural passenger services on non-electrified lines.
-
C.
British Rail Class 153
The British Rail Class 153 is a single-car diesel multiple unit train used on regional and rural passenger services across the UK rail network.
-
D.
British Rail Class 171
The British Rail Class 171 is a diesel multiple unit train used primarily by Southern in the UK, closely related to the Class 170 but equipped with different coupling systems for compatibility with other Southern stock.
-
E.
British Rail Class 168
The British Rail Class 168 is a diesel multiple-unit train used primarily by Chiltern Railways for regional and intercity services in the United Kingdom.
- 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 156 diesel multiple unit Target entity description: The Class 156 diesel multiple unit is a British two-car regional train type introduced in the late 1980s for local and medium-distance passenger services.
-
A.
Class 150 diesel multiple unit
The Class 150 diesel multiple unit is a British two- or three-car regional passenger train introduced in the 1980s and widely used on local and suburban services across the UK rail network.
-
B.
Class 153 diesel multiple unit
The Class 153 diesel multiple unit is a single-car British regional train used primarily for local and rural passenger services on non-electrified lines.
-
C.
British Rail Class 153
The British Rail Class 153 is a single-car diesel multiple unit train used on regional and rural passenger services across the UK rail network.
-
D.
British Rail Class 171
The British Rail Class 171 is a diesel multiple unit train used primarily by Southern in the UK, closely related to the Class 170 but equipped with different coupling systems for compatibility with other Southern stock.
-
E.
British Rail Class 168
The British Rail Class 168 is a diesel multiple-unit train used primarily by Chiltern Railways for regional and intercity services in the United Kingdom.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | diesel multiple unit ⓘ |
| brakeType | air brakes ⓘ |
| brandedAs | Super Sprinter NERFINISHED ⓘ |
| carBodyConstruction | steel ⓘ |
| carLength | 23.21 m ⓘ |
| configuration | two-car set ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| coupling | BSI automatic coupler ⓘ |
| designedFor |
local services
ⓘ
medium-distance passenger services ⓘ regional services ⓘ |
| doorType | single-leaf sliding plug doors ⓘ |
| engineModel | Cummins NT855-R5 NERFINISHED ⓘ |
| engineType | diesel engine ⓘ |
| enteredService |
1987
ⓘ
1988 ⓘ |
| family | Sprinter NERFINISHED ⓘ |
| floorHeight | low-floor entrances at doors ⓘ |
| formation | DMCL+DMSL ⓘ |
| height | 3.77 m ⓘ |
| introduced | 1987 ⓘ |
| manufacturer | Metro-Cammell NERFINISHED ⓘ |
| maximumSpeed |
121 km/h
ⓘ
75 mph ⓘ |
| multipleWorking | BSI-compatible units ⓘ |
| numberBuilt | 114 ⓘ |
| operator |
Abellio Greater Anglia (former)
NERFINISHED
ⓘ
British Rail NERFINISHED ⓘ Central Trains (former) NERFINISHED ⓘ East Midlands Railway NERFINISHED ⓘ First ScotRail (former) NERFINISHED ⓘ Northern Trains ⓘ Regional Railways (former) NERFINISHED ⓘ ScotRail ⓘ Transport for Wales Rail NERFINISHED ⓘ West Midlands Trains (former use via London Northwestern Railway) NERFINISHED ⓘ |
| powerOutputPerEngine | 213 kW ⓘ |
| powerType | diesel-mechanical ⓘ |
| productionEnd | 1989 ⓘ |
| productionStart | 1987 ⓘ |
| successor | British Rail Class 158 NERFINISHED ⓘ |
| trackGauge |
1435 mm
ⓘ
standard gauge ⓘ |
| transmission | Voith T211r NERFINISHED ⓘ |
| UICClassification | Bo′2′+2′Bo′ ⓘ |
| usedOn | non-electrified lines in Britain ⓘ |
| width | 2.7 m ⓘ |
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 156 diesel multiple unit Description of subject: The Class 156 diesel multiple unit is a British two-car regional train type introduced in the late 1980s for local and medium-distance passenger services.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Central Trains