Class 323 electric multiple unit
E553438
The Class 323 electric multiple unit is a type of British suburban electric train widely used for high-frequency commuter services around cities such as Birmingham and Manchester.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Class 323 electric multiple unit canonical | 2 |
| Class 323 electric multiple units | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5842021 — 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 323 electric multiple unit Context triple: [Central Trains, operatedRollingStockType, Class 323 electric multiple unit]
-
A.
Class 321 electric multiple unit
The Class 321 electric multiple unit is a British suburban and commuter train type introduced in the late 1980s for high-capacity, overhead-electrified passenger services.
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B.
Class 365 electric multiple unit
The Class 365 electric multiple unit is a British dual-voltage commuter train type introduced in the 1990s for high-frequency suburban and regional services, primarily around London and the southeast.
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C.
Class 360 electric multiple unit
The Class 360 electric multiple unit is a type of British high-speed commuter train used on electrified mainline routes for regional and outer-suburban passenger services.
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D.
Class 385 electric multiple units
The Class 385 electric multiple units are modern electric commuter trains used by ScotRail, primarily operating on electrified routes in Scotland’s Central Belt.
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E.
Class 700 electric multiple unit
The Class 700 electric multiple unit is a modern high-capacity commuter train used on Thameslink and related services in the UK, designed for intensive suburban and cross-London operations.
- 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 323 electric multiple unit Target entity description: The Class 323 electric multiple unit is a type of British suburban electric train widely used for high-frequency commuter services around cities such as Birmingham and Manchester.
-
A.
Class 321 electric multiple unit
The Class 321 electric multiple unit is a British suburban and commuter train type introduced in the late 1980s for high-capacity, overhead-electrified passenger services.
-
B.
Class 365 electric multiple unit
The Class 365 electric multiple unit is a British dual-voltage commuter train type introduced in the 1990s for high-frequency suburban and regional services, primarily around London and the southeast.
-
C.
Class 360 electric multiple unit
The Class 360 electric multiple unit is a type of British high-speed commuter train used on electrified mainline routes for regional and outer-suburban passenger services.
-
D.
Class 385 electric multiple units
The Class 385 electric multiple units are modern electric commuter trains used by ScotRail, primarily operating on electrified routes in Scotland’s Central Belt.
-
E.
Class 700 electric multiple unit
The Class 700 electric multiple unit is a modern high-capacity commuter train used on Thameslink and related services in the UK, designed for intensive suburban and cross-London operations.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
electric multiple unit
ⓘ
suburban train ⓘ |
| brakeType | electro-pneumatic brakes ⓘ |
| buildEnd | 1995 ⓘ |
| buildStart | 1992 ⓘ |
| carBodyConstruction | steel ⓘ |
| configuration | 3-car unit ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| couplingType | Tightlock ⓘ |
| designedBy | Hunslet Transportation Projects NERFINISHED ⓘ |
| designedFor |
high-frequency commuter services
ⓘ
short to medium distance routes ⓘ |
| doorArrangement | 2 sets of doors per side per car (typical) ⓘ |
| doorType | power-operated sliding doors ⓘ |
| electricSystem | 25 kV 50 Hz AC overhead ⓘ |
| enteredService | 1994 ⓘ |
| family | Networker family NERFINISHED ⓘ |
| formation | Driving Motor + Trailer + Driving Motor ⓘ |
| formerOperator |
Central Trains
NERFINISHED
ⓘ
London Midland NERFINISHED ⓘ Regional Railways NERFINISHED ⓘ |
| gauge | standard gauge ⓘ |
| introducedBy | British Rail NERFINISHED ⓘ |
| manufacturer |
Hunslet Transportation Projects
NERFINISHED
ⓘ
Hunslet-Barclay NERFINISHED ⓘ |
| multipleWorking | with other Class 323 units ⓘ |
| numberBuilt | 43 units ⓘ |
| operator |
Northern Trains
ⓘ
West Midlands Trains NERFINISHED ⓘ |
| operatorCountry | United Kingdom NERFINISHED ⓘ |
| operatorUse |
stopping services
ⓘ
suburban commuter services ⓘ |
| powerCollectionMethod | overhead line ⓘ |
| powerOutput | approximately 1000 kW ⓘ |
| primaryAreaOfOperation |
Birmingham
NERFINISHED
ⓘ
Greater Manchester NERFINISHED ⓘ Manchester NERFINISHED ⓘ West Midlands NERFINISHED ⓘ |
| serviceType |
commuter rail
ⓘ
suburban rail ⓘ |
| topSpeed |
145 km/h
ⓘ
90 mph ⓘ |
| trackGauge | 1435 mm ⓘ |
| tractionType | electric ⓘ |
| UICClassification | Bo′Bo′+2′2′+Bo′Bo′ ⓘ |
| usedOn |
Cross-City Line (Birmingham)
NERFINISHED
ⓘ
Manchester suburban routes ⓘ |
| voltage | 25 kV AC ⓘ |
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 323 electric multiple unit Description of subject: The Class 323 electric multiple unit is a type of British suburban electric train widely used for high-frequency commuter services around cities such as Birmingham and Manchester.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Central Trains
this entity surface form:
Class 323 electric multiple units
this entity surface form:
Class 323 electric multiple units