Seibu Tamako Line
E1044213
The Seibu Tamako Line is a commuter railway line in western Tokyo, Japan, operated by Seibu Railway and serving suburban residential areas between Kokubunji and the Tama region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Seibu Tamako Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10359211 — 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: Seibu Tamako Line Context triple: [Kokubunji, railwayLine, Seibu Tamako Line]
-
A.
Seibu Kokubunji Line
The Seibu Kokubunji Line is a commuter railway line in western Tokyo operated by Seibu Railway, connecting residential suburbs with major transit hubs.
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B.
Seibu Toshima Line
The Seibu Toshima Line is a short commuter railway line in Tokyo, Japan, operated by Seibu Railway and connecting Nerima and Toshimaen in the city’s northwest.
-
C.
Rinkai Line
The Rinkai Line is a Tokyo railway line that connects central Tokyo with the waterfront Odaiba area and other bayside districts.
-
D.
Tōkyū Ōimachi Line
The Tōkyū Ōimachi Line is a major commuter railway line in Tokyo operated by Tokyu Corporation, connecting central Tokyo areas such as Ōimachi and Futako-Tamagawa with surrounding residential districts.
-
E.
Seishin-Yamate Line
The Seishin-Yamate Line is a major Kobe Municipal Subway line in Kobe, Japan, connecting central Kobe with its northern and western suburban areas.
- 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: Seibu Tamako Line Target entity description: The Seibu Tamako Line is a commuter railway line in western Tokyo, Japan, operated by Seibu Railway and serving suburban residential areas between Kokubunji and the Tama region.
-
A.
Seibu Kokubunji Line
The Seibu Kokubunji Line is a commuter railway line in western Tokyo operated by Seibu Railway, connecting residential suburbs with major transit hubs.
-
B.
Seibu Toshima Line
The Seibu Toshima Line is a short commuter railway line in Tokyo, Japan, operated by Seibu Railway and connecting Nerima and Toshimaen in the city’s northwest.
-
C.
Rinkai Line
The Rinkai Line is a Tokyo railway line that connects central Tokyo with the waterfront Odaiba area and other bayside districts.
-
D.
Tōkyū Ōimachi Line
The Tōkyū Ōimachi Line is a major commuter railway line in Tokyo operated by Tokyu Corporation, connecting central Tokyo areas such as Ōimachi and Futako-Tamagawa with surrounding residential districts.
-
E.
Seishin-Yamate Line
The Seishin-Yamate Line is a major Kobe Municipal Subway line in Kobe, Japan, connecting central Kobe with its northern and western suburban areas.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
railway line in Japan ⓘ |
| connectsWith |
JR Chuo Line (Rapid) at Kokubunji Station
NERFINISHED
ⓘ
Seibu Kokubunji Line at Kokubunji Station NERFINISHED ⓘ Seibu Shinjuku Line at Hagiyama Station NERFINISHED ⓘ |
| country | Japan ⓘ |
| depot | Tamako Depot NERFINISHED ⓘ |
| electrification | 1500 V DC overhead catenary ⓘ |
| electrifiedSince | opening ⓘ |
| fareSystem | Seibu Railway fare system ⓘ |
| hasColorOnRouteMap | blue ⓘ |
| hasOfficialLanguageForSignage |
English
ⓘ
Japanese ⓘ |
| hasPlatformScreenDoors | no ⓘ |
| isPartOfNetwork | Seibu Railway network NERFINISHED ⓘ |
| lineLength | 9.2 km ⓘ |
| locale |
Higashimurayama, Tokyo
NERFINISHED
ⓘ
Kodaira, Tokyo NERFINISHED ⓘ Kokubunji, Tokyo NERFINISHED ⓘ |
| locatedIn |
Japan
ⓘ
Tokyo ⓘ |
| numberOfStations | 8 ⓘ |
| numberOfTracks | single track ⓘ |
| opened | 1928 ⓘ |
| operator | Seibu Railway NERFINISHED ⓘ |
| owner | Seibu Railway NERFINISHED ⓘ |
| primaryUse | commuter transport ⓘ |
| railwayCompany | Seibu Railway NERFINISHED ⓘ |
| regionServed |
Tama region
NERFINISHED
ⓘ
western Tokyo NERFINISHED ⓘ |
| rollingStock |
Seibu 101 series
NERFINISHED
ⓘ
Seibu 2000 series NERFINISHED ⓘ Seibu 20000 series NERFINISHED ⓘ Seibu 3000 series NERFINISHED ⓘ Seibu 40000 series NERFINISHED ⓘ Seibu 6000 series NERFINISHED ⓘ |
| serves | suburban residential areas ⓘ |
| serviceType | all-stations (local) service ⓘ |
| terminus |
Hagiyama Station
NERFINISHED
ⓘ
Kokubunji Station NERFINISHED ⓘ Tamako Station NERFINISHED ⓘ |
| ticketing | IC cards accepted ⓘ |
| trackGauge | 1067 mm ⓘ |
| usesSignalingSystem | automatic block signaling ⓘ |
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: Seibu Tamako Line Description of subject: The Seibu Tamako Line is a commuter railway line in western Tokyo, Japan, operated by Seibu Railway and serving suburban residential areas between Kokubunji and the Tama region.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.