Osaka Metro 23 series
E364664
The Osaka Metro 23 series is a type of electric multiple unit train operated on Osaka’s subway network, specifically serving the Yotsubashi Line.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Osaka Metro 23 series canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T3478588 — 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 23 series Context triple: [Yotsubashi Line, usesRollingStock, Osaka Metro 23 series]
-
A.
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.
-
B.
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.
-
C.
Osaka Metro 22 series trains
The Osaka Metro 22 series trains are electric multiple units operating on Osaka’s subway network, designed for efficient, high-capacity urban passenger service.
-
D.
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.
-
E.
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.
- 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 23 series Target entity description: The Osaka Metro 23 series is a type of electric multiple unit train operated on Osaka’s subway network, specifically serving the Yotsubashi Line.
-
A.
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.
-
B.
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.
-
C.
Osaka Metro 22 series trains
The Osaka Metro 22 series trains are electric multiple units operating on Osaka’s subway network, designed for efficient, high-capacity urban passenger service.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf |
Osaka Metro rolling stock
ⓘ
electric multiple unit ⓘ |
| brakeType |
electric command brake
ⓘ
regenerative brake ⓘ |
| carBodyMaterial |
aluminium alloy
ⓘ
stainless steel ⓘ |
| country | Japan ⓘ |
| designedFor | Osaka Metro Yotsubashi Line NERFINISHED ⓘ |
| designedForPlatformHeight | Osaka Metro standard platform height ⓘ |
| doorConfiguration | 3 pairs per side per car ⓘ |
| doorType | sliding doors ⓘ |
| electrificationSystem | 750 V DC third rail ⓘ |
| formation | 6-car trainsets ⓘ |
| gauge | standard gauge ⓘ |
| hasMultipleUnitsControl | yes ⓘ |
| introducedForReplacementOf | older rolling stock on Yotsubashi Line ⓘ |
| network | Osaka Metro network ⓘ |
| operatesOnLine | Yotsubashi Line NERFINISHED ⓘ |
| operator | Osaka Metro ⓘ |
| owner | Osaka Metro ⓘ |
| powerSupply | third rail ⓘ |
| primaryDepot | Yotsubashi Line depot ⓘ |
| railwaySystem |
Osaka Metro
ⓘ
surface form:
Osaka Municipal Subway
|
| regionServed | Osaka Prefecture ⓘ |
| safetySystem |
automatic train control
ⓘ
automatic train stop ⓘ |
| serviceStatus | in service ⓘ |
| serviceType |
rapid transit
ⓘ
subway train ⓘ |
| trackGauge_mm | 1435 ⓘ |
| trackType | underground ⓘ |
| tractionType | electric ⓘ |
| usedFor | passenger transport ⓘ |
| usedInCity | Osaka ⓘ |
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 23 series Description of subject: The Osaka Metro 23 series is a type of electric multiple unit train operated on Osaka’s subway network, specifically serving the Yotsubashi Line.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.