Class 717 EMU
E759134
The Class 717 EMU is a modern electric multiple unit train operated by Great Northern for suburban commuter services into London, particularly on routes through the Northern City Line.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Class 717 EMU canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T8802139 — 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 717 EMU Context triple: [Hertford Loop Line, rollingStockUsed, Class 717 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.
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.
-
C.
Class 317 EMU
The Class 317 EMU is a type of British electric multiple unit train introduced in the early 1980s for suburban and commuter services on 25 kV AC overhead electrified routes.
-
D.
Class 313 EMU
The Class 313 EMU is a British dual-voltage electric multiple unit train introduced in the 1970s, notable for being among the first of its kind to operate on both overhead and third-rail power systems.
-
E.
Class 455 EMU
The Class 455 EMU is a type of British electric multiple unit train introduced in the early 1980s for suburban commuter services in the South East of England.
- 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 717 EMU Target entity description: The Class 717 EMU is a modern electric multiple unit train operated by Great Northern for suburban commuter services into London, particularly on routes through the Northern City Line.
-
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.
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.
-
C.
Class 317 EMU
The Class 317 EMU is a type of British electric multiple unit train introduced in the early 1980s for suburban and commuter services on 25 kV AC overhead electrified routes.
-
D.
Class 313 EMU
The Class 313 EMU is a British dual-voltage electric multiple unit train introduced in the 1970s, notable for being among the first of its kind to operate on both overhead and third-rail power systems.
-
E.
Class 455 EMU
The Class 455 EMU is a type of British electric multiple unit train introduced in the early 1980s for suburban commuter services in the South East of England.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
commuter train
ⓘ
electric multiple unit ⓘ |
| accessibilityFeature |
accessible toilets
ⓘ
level boarding at most platforms ⓘ |
| brakeType | electro-pneumatic brakes ⓘ |
| builder |
Siemens Krefeld plant
ⓘ
linked to:
Siemens Krefeld factory
|
| countryOfOperation | United Kingdom ⓘ |
| couplingType | Scharfenberg coupler ⓘ |
| designedFor |
Northern City Line tunnel clearances
ⓘ
high-frequency metro-style operation ⓘ |
| doorArrangement | three pairs per side per car ⓘ |
| doorType | sliding plug doors ⓘ |
| electricSystem | dual-voltage ⓘ |
| enteredServiceOnRoute | Northern City Line ⓘ |
| enteredServiceYear | 2019 ⓘ |
| family |
Siemens Desiro City
ⓘ
linked to:
Siemens Desiro
|
| formation | 6-car units ⓘ |
| gauge | standard gauge ⓘ |
| hasCabEndFeature | emergency end doors ⓘ |
| hasFeature |
air conditioning
ⓘ
passenger information system ⓘ |
| introducedInService | 2019 ⓘ |
| livery | Great Northern purple and white ⓘ |
| manufacturer |
Siemens Mobility
ⓘ
linked to:
Siemens Transportation Systems
|
| multipleWorking | compatible with Class 700 Desiro City units ⓘ |
| numberBuilt | 25 units ⓘ |
| operatingArea |
Greater London
ⓘ
Hertfordshire ⓘ |
| operator |
Govia Thameslink Railway
ⓘ
Great Northern ⓘ |
| operatorBrand | Great Northern ⓘ |
| operatorType | franchised train operating company ⓘ |
| orderYear | 2016 ⓘ |
| owner | Rock Rail ⓘ |
| powerSupply |
25 kV AC overhead
ⓘ
750 V DC third rail ⓘ |
| predecessor | British Rail Class 313 ⓘ |
| primaryUse | suburban commuter services into London ⓘ |
| routeUsedOn |
Moorgate to Hertford North
ⓘ
Moorgate to Stevenage via Hertford North ⓘ Moorgate to Welwyn Garden City ⓘ |
| safetySystem |
AWS
ⓘ
GSM-R ⓘ TPWS ⓘ |
| topSpeed |
100 mph
ⓘ
160 km/h ⓘ |
| trackGauge | 1435 mm ⓘ |
| tractionType | electric ⓘ |
| trainProtection | tripcock equipment for tunnels ⓘ |
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 717 EMU Description of subject: The Class 717 EMU is a modern electric multiple unit train operated by Great Northern for suburban commuter services into London, particularly on routes through the Northern City Line.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.