DB Class 423 EMU
E501207
The DB Class 423 EMU is a series of modern electric multiple-unit commuter trains widely used in German S-Bahn networks for high-frequency urban and suburban passenger services.
All labels observed (1)
| Label | Occurrences |
|---|---|
| DB Class 423 EMU canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5193565 — 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: DB Class 423 EMU Context triple: [Stuttgart S-Bahn, rollingStock, DB Class 423 EMU]
-
A.
Class 745 EMU
The Class 745 EMU is a modern electric multiple unit train used on regional and intercity services in the UK, built for high-capacity, high-comfort passenger operations.
-
B.
CP Class 3400 EMU
The CP Class 3400 EMU is a series of electric multiple-unit trains operated by Comboios de Portugal, primarily used for suburban and commuter rail services.
-
C.
CP Class 2240 EMU
The CP Class 2240 EMU is a series of electric multiple unit trains operated by Comboios de Portugal, primarily used for suburban and regional passenger services.
-
D.
Class 720 EMU
The Class 720 EMU is a modern British electric multiple unit train built for high-capacity commuter and regional services, primarily operated in East Anglia.
-
E.
Class 397 Civity EMU
The Class 397 Civity EMU is a modern high-speed electric multiple unit built by CAF for intercity services in the UK, notably on routes linking north of England cities with Scotland.
- 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: DB Class 423 EMU Target entity description: The DB Class 423 EMU is a series of modern electric multiple-unit commuter trains widely used in German S-Bahn networks for high-frequency urban and suburban passenger services.
-
A.
Class 745 EMU
The Class 745 EMU is a modern electric multiple unit train used on regional and intercity services in the UK, built for high-capacity, high-comfort passenger operations.
-
B.
CP Class 3400 EMU
The CP Class 3400 EMU is a series of electric multiple-unit trains operated by Comboios de Portugal, primarily used for suburban and commuter rail services.
-
C.
CP Class 2240 EMU
The CP Class 2240 EMU is a series of electric multiple unit trains operated by Comboios de Portugal, primarily used for suburban and regional passenger services.
-
D.
Class 720 EMU
The Class 720 EMU is a modern British electric multiple unit train built for high-capacity commuter and regional services, primarily operated in East Anglia.
-
E.
Class 397 Civity EMU
The Class 397 Civity EMU is a modern high-speed electric multiple unit built by CAF for intercity services in the UK, notably on routes linking north of England cities with Scotland.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
S-Bahn train
ⓘ
commuter train ⓘ electric multiple unit ⓘ |
| accessibilityFeature | level boarding at high platforms ⓘ |
| brakeType |
electrodynamic braking
ⓘ
pneumatic braking ⓘ |
| category |
DB rolling stock
ⓘ
German electric multiple unit ⓘ |
| countryOfOperation | Germany ⓘ |
| couplingType | automatic coupler ⓘ |
| designedFor |
commuter rail
ⓘ
high-frequency service ⓘ rapid transit ⓘ short to medium distance routes ⓘ |
| doorConfiguration | multiple wide sliding doors per side ⓘ |
| electrificationSystem | 15 kV 16.7 Hz AC overhead ⓘ |
| floorType | partially low-floor ⓘ |
| formation | fixed multiple-unit set ⓘ |
| gauge | standard gauge ⓘ |
| hasFeature |
air-conditioned passenger compartments
ⓘ
high acceleration for frequent stops ⓘ open gangways between cars ⓘ passenger information system ⓘ |
| introducedInService |
around 1998
ⓘ
late 1990s ⓘ |
| multipleWorking | can operate in multiple with other Class 423 units ⓘ |
| networkRole | core S-Bahn fleet in several cities ⓘ |
| operator |
DB Regio
ⓘ
Deutsche Bahn ⓘ |
| owner |
Deutsche Bahn AG
ⓘ
linked to:
Deutsche Bahn
|
| powerType | electric ⓘ |
| primaryUse |
suburban passenger transport
ⓘ
urban passenger transport ⓘ |
| railwayOperator | Deutsche Bahn ⓘ |
| region | German metropolitan areas ⓘ |
| safetySystem | German train protection systems (e.g. PZB) ⓘ |
| servicePattern |
all-stations S-Bahn services
ⓘ
frequent-stop commuter services ⓘ |
| serviceType | S-Bahn ⓘ |
| tractionType | electric traction ⓘ |
| usedFor |
off-peak urban services
ⓘ
peak-hour commuter traffic ⓘ |
| usedOnNetwork |
Cologne S-Bahn
ⓘ
linked to:
Rhine-Ruhr S-Bahn
Frankfurt S-Bahn ⓘ
linked to:
Rhine-Main S-Bahn
Munich S-Bahn ⓘ Rhine-Ruhr S-Bahn ⓘ Stuttgart S-Bahn ⓘ |
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: DB Class 423 EMU Description of subject: The DB Class 423 EMU is a series of modern electric multiple-unit commuter trains widely used in German S-Bahn networks for high-frequency urban and suburban passenger services.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.