British Rail Class 222 Meridian
E522625
The British Rail Class 222 Meridian is a high-speed diesel-electric multiple unit train used in the UK for intercity services, known for its modern design, improved passenger comfort, and performance on routes such as those operated by East Midlands Railway.
All labels observed (2)
| Label | Occurrences |
|---|---|
| British Rail Class 222 | 4 |
| British Rail Class 222 Meridian canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T5313812 — 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 222 Meridian Context triple: [Voyager family, nonTiltingSubclass, British Rail Class 222 Meridian]
-
A.
British Rail Class 221 Super Voyager
The British Rail Class 221 Super Voyager is a high-speed tilting diesel-electric multiple unit train used in the UK for intercity services, particularly on long-distance routes.
-
B.
British Rail Class 323
The British Rail Class 323 is a type of electric multiple unit train widely used on suburban and commuter rail services in the West Midlands and North West England.
-
C.
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.
-
D.
British Rail Class 332
The British Rail Class 332 is an electric multiple unit train type built in the late 1990s specifically for high-speed, premium passenger services between London Paddington and Heathrow Airport.
-
E.
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.
- 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 222 Meridian Target entity description: The British Rail Class 222 Meridian is a high-speed diesel-electric multiple unit train used in the UK for intercity services, known for its modern design, improved passenger comfort, and performance on routes such as those operated by East Midlands Railway.
-
A.
British Rail Class 221 Super Voyager
The British Rail Class 221 Super Voyager is a high-speed tilting diesel-electric multiple unit train used in the UK for intercity services, particularly on long-distance routes.
-
B.
British Rail Class 323
The British Rail Class 323 is a type of electric multiple unit train widely used on suburban and commuter rail services in the West Midlands and North West England.
-
C.
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.
-
D.
British Rail Class 332
The British Rail Class 332 is an electric multiple unit train type built in the late 1990s specifically for high-speed, premium passenger services between London Paddington and Heathrow Airport.
-
E.
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.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
British Rail diesel multiple unit
ⓘ
diesel-electric multiple unit ⓘ |
| bogieType | Bombardier B5005 ⓘ |
| brakingSystem | electro-pneumatic brakes ⓘ |
| constructionMaterial | steel bodyshell ⓘ |
| countryOfOperation | United Kingdom ⓘ |
| couplingType |
Dellner coupler
ⓘ
linked to:
Dellner automatic couplers
|
| designFeature |
air-conditioned coaches
ⓘ
interior electronic passenger information displays ⓘ on-board Wi-Fi (as refurbished) ⓘ power sockets at seats (as refurbished) ⓘ tilt-capable bogies not fitted with active tilt ⓘ |
| doorType | powered sliding plug doors ⓘ |
| electricSystem | none (diesel only) ⓘ |
| engineType | diesel underfloor engines ⓘ |
| enteredService | 2004 ⓘ |
| family | Bombardier Voyager family ⓘ |
| formation |
4-car sets
ⓘ
5-car sets ⓘ 7-car sets ⓘ |
| formerOperator |
East Midlands Trains
ⓘ
linked to:
East Midlands Railway
Midland Mainline ⓘ
linked to:
Midland Main Line
|
| gauge | 1435 mm ⓘ |
| hasClass |
First Class seating
ⓘ
Standard Class seating ⓘ |
| introduced | early 2000s ⓘ |
| manufacturer |
Bombardier Transportation
ⓘ
linked to:
Alstom (formerly Bombardier Transportation)
|
| maximumSpeed |
125 mph
ⓘ
200 km/h ⓘ |
| multipleWorking |
compatible with Class 220 Voyager
ⓘ
compatible with Class 221 Super Voyager ⓘ
linked to:
Class 221 Super Voyager
|
| numberBuilt | 27 units ⓘ |
| operator | East Midlands Railway ⓘ |
| powerType | diesel-electric ⓘ |
| primaryOperatorRoute |
London St Pancras to Derby
ⓘ
London St Pancras to Nottingham ⓘ London St Pancras to Sheffield ⓘ |
| purpose | replacement for older High Speed Trains on some services ⓘ |
| relatedTo |
British Rail Class 220 Voyager
ⓘ
linked to:
British Rail Class 220
British Rail Class 221 Super Voyager ⓘ |
| routeUsedOn | Midland Main Line ⓘ |
| safetySystem |
AWS
ⓘ
OTMR ⓘ TPWS ⓘ |
| serviceType | intercity passenger services ⓘ |
| trackGauge | standard gauge ⓘ |
| UICClassification | Bo′2′+2′Bo′+2′Bo′+Bo′2′ (typical) ⓘ |
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 222 Meridian Description of subject: The British Rail Class 222 Meridian is a high-speed diesel-electric multiple unit train used in the UK for intercity services, known for its modern design, improved passenger comfort, and performance on routes such as those operated by East Midlands Railway.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: British Rail Class 222 Meridian
linked to: British Rail Class 222 Meridian
linked to: British Rail Class 222 Meridian
linked to: British Rail Class 222 Meridian