Osaka Metro 66 series
E374404
The Osaka Metro 66 series is a type of electric multiple unit train operated by Osaka Metro, primarily serving urban commuter routes in Osaka, Japan.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Osaka Metro 66 series canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3547003 — 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 66 series Context triple: [Sakaisuji Line, usesRollingStock, Osaka Metro 66 series]
-
A.
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.
-
B.
Osaka Metro 23 series
The Osaka Metro 23 series is a type of electric multiple unit train operated on Osaka’s subway network, specifically serving the Yotsubashi Line.
-
C.
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.
-
D.
Osaka Metro 24 series
The Osaka Metro 24 series is a type of electric multiple unit train used for urban rapid transit services on Osaka’s subway network.
-
E.
Osaka Metro 20 series
The Osaka Metro 20 series is a type of electric multiple unit train used on Osaka's subway network, known for its stainless-steel construction and service on several key lines.
- 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 66 series Target entity description: The Osaka Metro 66 series is a type of electric multiple unit train operated by Osaka Metro, primarily serving urban commuter routes in Osaka, Japan.
-
A.
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.
-
B.
Osaka Metro 23 series
The Osaka Metro 23 series is a type of electric multiple unit train operated on Osaka’s subway network, specifically serving the Yotsubashi Line.
-
C.
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.
-
D.
Osaka Metro 24 series
The Osaka Metro 24 series is a type of electric multiple unit train used for urban rapid transit services on Osaka’s subway network.
-
E.
Osaka Metro 20 series
The Osaka Metro 20 series is a type of electric multiple unit train used on Osaka's subway network, known for its stainless-steel construction and service on several key lines.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
commuter train
ⓘ
electric multiple unit ⓘ |
| cityServed | Osaka ⓘ |
| country | Japan ⓘ |
| countryOperatedIn | Japan ⓘ |
| designedFor | high‑frequency metro operations ⓘ |
| electrification | overhead electric supply ⓘ |
| gauge | standard gauge ⓘ |
| locale | Osaka Prefecture ⓘ |
| networkType | rapid transit ⓘ |
| operatedBy |
Osaka Metro Chikatetsu
ⓘ
linked to:
Osaka Metro
|
| operator | Osaka Metro ⓘ |
| owner | Osaka Metro ⓘ |
| powerCollectionMethod | electric rail system ⓘ |
| primaryUse | urban rail transit ⓘ |
| publicTransportCategory | metro train ⓘ |
| railwaySystem | Osaka Metro ⓘ |
| regionServed | Kansai region ⓘ |
| servicePattern | all‑stations stopping services ⓘ |
| serviceRole | commuter EMU ⓘ |
| serviceType | urban commuter service ⓘ |
| trackType | heavy rail ⓘ |
| traction | electric ⓘ |
| transportMode | rail ⓘ |
| usedFor | 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 66 series Description of subject: The Osaka Metro 66 series is a type of electric multiple unit train operated by Osaka Metro, primarily serving urban commuter routes in Osaka, Japan.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.