Seibu Shinjuku Line
E384447
The Seibu Shinjuku Line is a major private railway line in the Tokyo area operated by Seibu Railway, connecting Seibu-Shinjuku Station in central Tokyo with suburban cities in western Tokyo and Saitama Prefecture.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Seibu Shinjuku Line canonical | 4 |
| Seibu Shinjuku Line (nearby access) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1742820 — 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 Shinjuku Line Context triple: [Tama, servedBy, Seibu Shinjuku Line]
-
A.
Seibu Yurakucho Line
The Seibu Yurakucho Line is a commuter railway line in Tokyo operated by Seibu Railway, linking the Seibu Ikebukuro Line with central Tokyo subway networks.
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B.
Seibu Ikebukuro Line
The Seibu Ikebukuro Line is a major private railway line in the Tokyo area operated by Seibu Railway, connecting Ikebukuro in central Tokyo with suburban destinations in Saitama Prefecture.
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C.
Toei Shinjuku Line
The Toei Shinjuku Line is a Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, running east–west across the city and connecting central Tokyo with its eastern suburbs.
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D.
Tokyu Den-en-toshi Line
Tokyu Den-en-toshi Line is a major private railway line in the Tokyo metropolitan area that connects central Tokyo with suburban residential districts, including service to Shibuya.
-
E.
Toei Oedo Line
The Toei Oedo Line is a major Tokyo subway loop and radial line operated by the Tokyo Metropolitan Bureau of Transportation, connecting central districts with many key commercial and residential 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 Shinjuku Line Target entity description: The Seibu Shinjuku Line is a major private railway line in the Tokyo area operated by Seibu Railway, connecting Seibu-Shinjuku Station in central Tokyo with suburban cities in western Tokyo and Saitama Prefecture.
-
A.
Seibu Yurakucho Line
The Seibu Yurakucho Line is a commuter railway line in Tokyo operated by Seibu Railway, linking the Seibu Ikebukuro Line with central Tokyo subway networks.
-
B.
Seibu Ikebukuro Line
The Seibu Ikebukuro Line is a major private railway line in the Tokyo area operated by Seibu Railway, connecting Ikebukuro in central Tokyo with suburban destinations in Saitama Prefecture.
-
C.
Toei Shinjuku Line
The Toei Shinjuku Line is a Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, running east–west across the city and connecting central Tokyo with its eastern suburbs.
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D.
Tokyu Den-en-toshi Line
Tokyu Den-en-toshi Line is a major private railway line in the Tokyo metropolitan area that connects central Tokyo with suburban residential districts, including service to Shibuya.
-
E.
Toei Oedo Line
The Toei Oedo Line is a major Tokyo subway loop and radial line operated by the Tokyo Metropolitan Bureau of Transportation, connecting central districts with many key commercial and residential areas.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
railway line in Japan ⓘ |
| connectsWith |
JR Yamanote Line at Takadanobaba Station
ⓘ
Toei Oedo Line near Seibu-Shinjuku Station ⓘ Tokyo Metro Tozai Line at Nakai via Oedo Line transfer ⓘ Tokyo Metro Tozai Line at Takadanobaba Station ⓘ |
| country | Japan ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| endingPoint | Hon-Kawagoe Station NERFINISHED ⓘ |
| gauge | 1,067 mm ⓘ |
| hasStation |
Hon-Kawagoe Station
NERFINISHED
ⓘ
Seibu-Shinjuku Station NERFINISHED ⓘ |
| locatedIn |
Saitama Prefecture
NERFINISHED
ⓘ
Tokyo ⓘ |
| majorStation |
Hanno-bound branch connection at Tokorozawa (via Seibu Ikebukuro Line)
ⓘ
Higashi-Fushimi Station NERFINISHED ⓘ Iruma-gawa Station NERFINISHED ⓘ Kami-Shakujii Station NERFINISHED ⓘ Kokubunji Line junction at Higashi-Murayama Station ⓘ Musashi-Seki Station NERFINISHED ⓘ Nakai Station NERFINISHED ⓘ Nogata Station NERFINISHED ⓘ Shimo-Ochiai Station NERFINISHED ⓘ Takadanobaba Station NERFINISHED ⓘ Tanashi Station NERFINISHED ⓘ Tokorozawa Station NERFINISHED ⓘ |
| numberOfTracks | double track (most of the line) ⓘ |
| opened | early 20th century ⓘ |
| operator | Seibu Railway NERFINISHED ⓘ |
| owner | Seibu Railway NERFINISHED ⓘ |
| primaryUse | commuter transport ⓘ |
| railwaySignalling | automatic block system ⓘ |
| regionServed |
Saitama Prefecture
NERFINISHED
ⓘ
western Tokyo ⓘ |
| rollingStock |
Seibu 10000 series limited express EMU
ⓘ
Seibu 2000 series EMU ⓘ Seibu 30000 series EMU ⓘ Seibu 6000 series ⓘ
surface form:
Seibu 6000 series EMU
|
| serves |
central Tokyo
ⓘ
suburban cities in Saitama Prefecture ⓘ suburban cities in western Tokyo ⓘ |
| serviceType |
express
ⓘ
limited express ⓘ local ⓘ semi-express ⓘ |
| startingPoint | Seibu-Shinjuku Station NERFINISHED ⓘ |
| terminus |
Hon-Kawagoe Station
NERFINISHED
ⓘ
Seibu-Shinjuku Station NERFINISHED ⓘ |
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 Shinjuku Line Description of subject: The Seibu Shinjuku Line is a major private railway line in the Tokyo area operated by Seibu Railway, connecting Seibu-Shinjuku Station in central Tokyo with suburban cities in western Tokyo and Saitama Prefecture.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Seibu Shinjuku Line (nearby access)