Class 170 diesel multiple unit
E602810
The Class 170 diesel multiple unit is a British Turbostar family regional train used extensively for passenger services across the UK rail network.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Class 170 diesel multiple unit canonical | 2 |
| Class 170 DMU | 1 |
| Class 170 diesel multiple units | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5842019 — 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 170 diesel multiple unit Context triple: [Central Trains, operatedRollingStockType, Class 170 diesel multiple unit]
-
A.
Class 156 diesel multiple unit
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.
-
B.
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.
-
C.
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.
-
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 172
The British Rail Class 172 is a diesel multiple-unit train used on regional and suburban services in the UK, featuring improved performance, reliability, and passenger comfort over earlier Turbostar units.
- 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 170 diesel multiple unit Target entity description: The Class 170 diesel multiple unit is a British Turbostar family regional train used extensively for passenger services across the UK rail network.
-
A.
Class 156 diesel multiple unit
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.
-
B.
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.
-
C.
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.
-
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 172
The British Rail Class 172 is a diesel multiple-unit train used on regional and suburban services in the UK, featuring improved performance, reliability, and passenger comfort over earlier Turbostar units.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Turbostar family train
ⓘ
diesel multiple unit ⓘ |
| brakeType | air brakes ⓘ |
| brandedAs | Turbostar ⓘ |
| carBodyConstruction | steel ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| couplingType | BSI automatic coupler ⓘ |
| designedFor |
inter-urban services
ⓘ
regional services ⓘ suburban services ⓘ |
| doorType | single-leaf sliding plug doors ⓘ |
| engineType | diesel engine ⓘ |
| enteredTrafficAsReplacementFor | older first-generation DMUs ⓘ |
| family | Turbostar ⓘ |
| hasCabConfiguration | dual-cab end cars ⓘ |
| hasInterior | air-conditioned saloon ⓘ |
| hasSeatingClass |
first class (on some operators)
ⓘ
standard class ⓘ |
| inService | 1999 ⓘ |
| introduced | 1998 ⓘ |
| manufacturer |
ADtranz
ⓘ
Bombardier Transportation ⓘ
linked to:
Alstom (formerly Bombardier Transportation)
|
| multipleWorking |
Class 168
ⓘ
Class 171 ⓘ Class 172 ⓘ Turbostar family units ⓘ |
| numberOfCarsPerSet |
2
ⓘ
3 ⓘ |
| operatingRegion | Great Britain ⓘ |
| operator |
Abellio Greater Anglia (former)
ⓘ
linked to:
Greater Anglia
Central Trains (former) ⓘ CrossCountry ⓘ East Midlands Railway ⓘ Hull Trains (former) ⓘ London Midland (former) ⓘ
linked to:
London Midland
Northern Trains ⓘ ScotRail ⓘ Transport for Wales Rail ⓘ West Midlands Railway ⓘ |
| operatorType | passenger train ⓘ |
| powerType | diesel ⓘ |
| topSpeed |
100 mph
ⓘ
160 km/h ⓘ |
| trackGauge |
1435 mm
ⓘ
standard gauge ⓘ |
| transmission | hydro-mechanical transmission ⓘ |
| UICClassification | Bo′2′ ⓘ |
| usedFor | passenger services ⓘ |
| usedOn | UK rail network ⓘ |
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 170 diesel multiple unit Description of subject: The Class 170 diesel multiple unit is a British Turbostar family regional train used extensively for passenger services across the UK rail network.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Central Trains (former)
linked to: Class 170 diesel multiple unit
linked to: Class 170 diesel multiple unit