Osaka Metro 25 series
E165917
The Osaka Metro 25 series is a type of electric multiple unit train used for passenger services on Osaka’s subway network.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Osaka Metro 25 series canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1453282 — 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 25 series Context triple: [Osaka Metro Sennichimae Line, hasRollingStock, Osaka Metro 25 series]
-
A.
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.
-
B.
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.
-
C.
Tokyo Metro 1000 series
The Tokyo Metro 1000 series is a modern electric multiple unit train used on Tokyo’s subway system, designed with retro-inspired styling that pays homage to the original Ginza Line cars while incorporating contemporary technology and comfort features.
-
D.
Tokyo Metro 8000 series
The Tokyo Metro 8000 series is a fleet of electric multiple unit trains introduced in the early 1980s for Tokyo’s subway network, known for their long service life and multiple refurbishment programs.
-
E.
Tokyo Metro 7000 series
The Tokyo Metro 7000 series is a Japanese electric multiple unit train type operated by Tokyo Metro, primarily used on busy commuter subway lines in Tokyo.
- 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 25 series Target entity description: The Osaka Metro 25 series is a type of electric multiple unit train used for passenger services on Osaka’s subway network.
-
A.
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.
-
B.
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.
-
C.
Tokyo Metro 1000 series
The Tokyo Metro 1000 series is a modern electric multiple unit train used on Tokyo’s subway system, designed with retro-inspired styling that pays homage to the original Ginza Line cars while incorporating contemporary technology and comfort features.
-
D.
Tokyo Metro 8000 series
The Tokyo Metro 8000 series is a fleet of electric multiple unit trains introduced in the early 1980s for Tokyo’s subway network, known for their long service life and multiple refurbishment programs.
-
E.
Tokyo Metro 7000 series
The Tokyo Metro 7000 series is a Japanese electric multiple unit train type operated by Tokyo Metro, primarily used on busy commuter subway lines in Tokyo.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
commuter train
ⓘ
electric multiple unit ⓘ |
| brakeType |
electro-pneumatic brake
ⓘ
regenerative brake ⓘ |
| carBodyMaterial | stainless steel ⓘ |
| carLength | about 18.9 m ⓘ |
| carWidth | about 2.9 m ⓘ |
| country | Japan ⓘ |
| doorConfiguration | 4 pairs per side per car ⓘ |
| electrification | 750 V DC third rail ⓘ |
| formation | 6-car trainsets ⓘ |
| gauge | 1,435 mm ⓘ |
| network |
Osaka Metro
ⓘ
surface form:
Osaka subway network
|
| operator |
Osaka Metro
ⓘ
Osaka Metro ⓘ
surface form:
Osaka Municipal Transportation Bureau
|
| owner | Osaka Metro ⓘ |
| powerCollectionMethod | third rail shoes ⓘ |
| propulsionType | electric traction ⓘ |
| publicTransportSystem |
Osaka Metro
ⓘ
surface form:
Osaka Metro system
|
| regionServed | Osaka Prefecture ⓘ |
| serves |
Osaka Metro Chuo Line
ⓘ
surface form:
Osaka Metro Chūō Line
|
| serviceType | rapid transit ⓘ |
| trackConfiguration | standard gauge ⓘ |
| trackGaugeCategory | standard-gauge railway rolling stock ⓘ |
| usedFor | urban passenger transport ⓘ |
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 25 series Description of subject: The Osaka Metro 25 series is a type of electric multiple unit train used for passenger services on Osaka’s subway network.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.