Osaka Metro 22 series trains
E323957
The Osaka Metro 22 series trains are electric multiple units operating on Osaka’s subway network, designed for efficient, high-capacity urban passenger service.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Osaka Metro 22 series | 1 |
| Osaka Metro 22 series trains canonical | 1 |
| Osaka Metro rolling stock | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3042365 — 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: Osaka Metro 22 series trains Context triple: [Osaka Metro Tanimachi Line, usesRollingStock, Osaka Metro 22 series trains]
-
A.
Osaka Metro 30 series trains
The Osaka Metro 30 series trains are electric multiple units operating on Osaka’s subway network, known for their stainless-steel bodies and use on busy urban lines such as the Tanimachi Line.
-
B.
Osaka Metro 25 series
The Osaka Metro 25 series is a type of electric multiple unit train used for passenger services on Osaka’s subway network.
-
C.
Osaka Metro 30000 series
The Osaka Metro 30000 series is a modern electric multiple unit train type operated by Osaka Metro, featuring air conditioning, energy-efficient systems, and improved passenger comfort for urban subway services.
-
D.
Tokyo Metro 18000 series
The Tokyo Metro 18000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Hanzomon Line and connecting suburban routes.
-
E.
Tokyo Metro 10000 series
The Tokyo Metro 10000 series is a fleet of modern electric multiple unit trains operated by Tokyo Metro, known for serving through-services on several interconnected subway and private railway lines in the Tokyo area.
- 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: Osaka Metro 22 series trains Target entity description: The Osaka Metro 22 series trains are electric multiple units operating on Osaka’s subway network, designed for efficient, high-capacity urban passenger service.
-
A.
Osaka Metro 30 series trains
The Osaka Metro 30 series trains are electric multiple units operating on Osaka’s subway network, known for their stainless-steel bodies and use on busy urban lines such as the Tanimachi Line.
-
B.
Osaka Metro 25 series
The Osaka Metro 25 series is a type of electric multiple unit train used for passenger services on Osaka’s subway network.
-
C.
Osaka Metro 30000 series
The Osaka Metro 30000 series is a modern electric multiple unit train type operated by Osaka Metro, featuring air conditioning, energy-efficient systems, and improved passenger comfort for urban subway services.
-
D.
Tokyo Metro 18000 series
The Tokyo Metro 18000 series is a modern electric multiple unit train operated by Tokyo Metro, designed for through-services on lines such as the Hanzomon Line and connecting suburban routes.
-
E.
Tokyo Metro 10000 series
The Tokyo Metro 10000 series is a fleet of modern electric multiple unit trains operated by Tokyo Metro, known for serving through-services on several interconnected subway and private railway lines in the Tokyo area.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
commuter train
ⓘ
electric multiple unit ⓘ |
| belongsTo |
Osaka Metro 22 series trains
self-linksurface differs
ⓘ
surface form:
Osaka Metro rolling stock
|
| brakeType |
electro-pneumatic brakes
ⓘ
regenerative braking ⓘ |
| carBodyMaterial | stainless steel ⓘ |
| controlType | multiple-unit control ⓘ |
| country | Japan ⓘ |
| designedFor |
energy efficiency
ⓘ
high frequency operation ⓘ high-capacity passenger service ⓘ rapid boarding and alighting ⓘ urban passenger transport ⓘ |
| doorType | sliding doors ⓘ |
| electrificationSystem | direct current ⓘ |
| gauge | standard gauge ⓘ |
| hasFormation | multiple-car trainsets ⓘ |
| hasOperator | Osaka Metro Chuo Line ⓘ |
| locatedIn | Osaka ⓘ |
| multipleUnitType | electric multiple unit ⓘ |
| network | Osaka Metro ⓘ |
| operatesOn |
Osaka Metro
ⓘ
surface form:
Osaka Municipal Subway network
|
| operator | Osaka Metro ⓘ |
| passengerCapacity | high capacity ⓘ |
| powerCollectionMethod | third rail ⓘ |
| railwayOperator |
Osaka Metro
ⓘ
surface form:
Osaka Metro Co., Ltd.
|
| railwaySystem | Osaka Metro Chuo Line ⓘ |
| regionServed | Kansai region ⓘ |
| serviceStatus | in operation ⓘ |
| serviceType |
rapid transit
ⓘ
urban rail ⓘ |
| trackGauge | 1435 mm ⓘ |
| trackType | underground railway ⓘ |
| traction | electric ⓘ |
| usedFor | passenger transport ⓘ |
| usedIn |
Osaka–Kobe metropolitan area
ⓘ
surface form:
Osaka urban area
|
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: Osaka Metro 22 series trains Description of subject: The Osaka Metro 22 series trains are electric multiple units operating on Osaka’s subway network, designed for efficient, high-capacity urban passenger service.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Osaka Metro 22 series
subject surface form:
Osaka Metro 22 series
this entity surface form:
Osaka Metro rolling stock