British Rail Class 155
E552466
The British Rail Class 155 is a type of diesel multiple unit passenger train built in the late 1980s for regional services on the UK rail network.
All labels observed (1)
| Label | Occurrences |
|---|---|
| British Rail Class 155 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5501823 — 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 155 Context triple: [Sprinter, hasSubclass, British Rail Class 155]
-
A.
British Rail Class 158
The British Rail Class 158 is a diesel multiple-unit train built in the late 1980s and early 1990s for regional and intercity services across the UK rail network.
-
B.
British Rail Class 150
The British Rail Class 150 is a diesel multiple-unit passenger train built in the 1980s for regional and commuter services on the UK rail network.
-
C.
British Rail Class 159
The British Rail Class 159 is a diesel multiple-unit train used for long-distance regional services in the UK, particularly known for operating intercity-style routes in the southwest of England.
-
D.
British Rail Class 325
The British Rail Class 325 is an electric multiple unit train type designed specifically for high-speed postal and parcel services on the UK rail network.
-
E.
British Rail Class 220
The British Rail Class 220 is a high-speed diesel-electric multiple unit train used in the UK for intercity services, known as part of the Voyager family built by Bombardier.
- 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 155 Target entity description: The British Rail Class 155 is a type of diesel multiple unit passenger train built in the late 1980s for regional services on the UK rail network.
-
A.
British Rail Class 158
The British Rail Class 158 is a diesel multiple-unit train built in the late 1980s and early 1990s for regional and intercity services across the UK rail network.
-
B.
British Rail Class 150
The British Rail Class 150 is a diesel multiple-unit passenger train built in the 1980s for regional and commuter services on the UK rail network.
-
C.
British Rail Class 159
The British Rail Class 159 is a diesel multiple-unit train used for long-distance regional services in the UK, particularly known for operating intercity-style routes in the southwest of England.
-
D.
British Rail Class 325
The British Rail Class 325 is an electric multiple unit train type designed specifically for high-speed postal and parcel services on the UK rail network.
-
E.
British Rail Class 220
The British Rail Class 220 is a high-speed diesel-electric multiple unit train used in the UK for intercity services, known as part of the Voyager family built by Bombardier.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
British Rail diesel multiple unit
ⓘ
diesel multiple unit ⓘ |
| brakeType | air brakes ⓘ |
| builtAt | Workington NERFINISHED ⓘ |
| builtBy | Leyland Bus NERFINISHED ⓘ |
| carBodyConstruction | steel ⓘ |
| country | United Kingdom ⓘ |
| couplingType | BSI automatic coupler ⓘ |
| designedBy | British Rail Engineering Limited (concept) NERFINISHED ⓘ |
| designedFor |
local services
ⓘ
regional services ⓘ |
| doorType | single-leaf sliding plug doors ⓘ |
| engineType | diesel engine ⓘ |
| enteredService |
1987
ⓘ
1988 ⓘ |
| family | Sprinter ⓘ |
| formation | 2-car set ⓘ |
| gauge | standard gauge ⓘ |
| hasCouplingCompatibility |
British Rail Class 150
NERFINISHED
ⓘ
British Rail Class 156 NERFINISHED ⓘ British Rail Class 158 NERFINISHED ⓘ |
| hasOperator | Northern Trains NERFINISHED ⓘ |
| hasSuccessor |
British Rail Class 156
NERFINISHED
ⓘ
British Rail Class 158 NERFINISHED ⓘ |
| introduced | late 1980s ⓘ |
| maximumSpeed |
121 km/h
ⓘ
75 mph ⓘ |
| multipleWorking | Sprinter family units ⓘ |
| numberBuilt | 42 units ⓘ |
| operatedOn | UK rail network ⓘ |
| operator |
Arriva Trains Northern
NERFINISHED
ⓘ
British Rail NERFINISHED ⓘ Northern NERFINISHED ⓘ Northern Rail NERFINISHED ⓘ Northern Spirit NERFINISHED ⓘ Regional Railways NERFINISHED ⓘ West Yorkshire Passenger Transport Executive NERFINISHED ⓘ |
| powerSupply | diesel mechanical transmission ⓘ |
| powerType | diesel ⓘ |
| serviceType |
regional rail
ⓘ
suburban rail ⓘ |
| trackGauge | 1435 mm ⓘ |
| UICClassification | Bo′2′+2′Bo′ ⓘ |
| usedFor |
commuter services
ⓘ
regional stopping services ⓘ |
| yearConstructionEnded | 1988 ⓘ |
| yearConstructionStarted | 1987 ⓘ |
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 155 Description of subject: The British Rail Class 155 is a type of diesel multiple unit passenger train built in the late 1980s for regional services on the UK rail network.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.