Keio Dōbutsuen Line
E810366
The Keio Dōbutsuen Line is a short branch railway line in Hino, Tokyo, operated by Keio Corporation, primarily serving visitors to the Tama Zoo and nearby attractions.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Keio Dobutsuen Line | 2 |
| Keio Dōbutsuen Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6154378 — 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: Keio Dōbutsuen Line Context triple: [Keio fare system, appliesTo, Keio Dōbutsuen Line]
-
A.
Keio Keibajō Line
The Keio Keibajō Line is a short branch railway line in Tokyo, Japan, operated by Keio Corporation to serve the Tokyo Racecourse area.
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B.
Keio Line
The Keio Line is a major private railway line in Tokyo, Japan, operated by Keio Corporation, connecting central Tokyo with its western suburbs.
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C.
Keio Sagamihara Line
The Keio Sagamihara Line is a commuter railway line in the Tokyo metropolitan area operated by Keio Corporation, connecting suburban communities with central Tokyo.
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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: Keio Dōbutsuen Line Target entity description: The Keio Dōbutsuen Line is a short branch railway line in Hino, Tokyo, operated by Keio Corporation, primarily serving visitors to the Tama Zoo and nearby attractions.
-
A.
Keio Keibajō Line
The Keio Keibajō Line is a short branch railway line in Tokyo, Japan, operated by Keio Corporation to serve the Tokyo Racecourse area.
-
B.
Keio Line
The Keio Line is a major private railway line in Tokyo, Japan, operated by Keio Corporation, connecting central Tokyo with its western suburbs.
-
C.
Keio Sagamihara Line
The Keio Sagamihara Line is a commuter railway line in the Tokyo metropolitan area operated by Keio Corporation, connecting suburban communities with central Tokyo.
-
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 (34)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
railway line ⓘ |
| connectsWith | Keio Line ⓘ |
| country | Japan ⓘ |
| depot | Takahatafudō area ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| endingStation | Tama-Dōbutsukōen Station NERFINISHED ⓘ |
| fareSystem | integrated with Keio network ⓘ |
| gauge | 1,372 mm ⓘ |
| hasColorOnRouteMap | same as Keio Line (purple) ⓘ |
| isBranchOf | Keio Line ⓘ |
| lineLength | approximately 2.0 km ⓘ |
| lineType | branch line ⓘ |
| locatedIn |
Hino City
ⓘ
Hino, Tokyo ⓘ Tokyo, Japan ⓘ
linked to:
Tokyo
|
| numberOfStations | 2 ⓘ |
| numberOfTracks | single track ⓘ |
| openedForService | 1964 ⓘ |
| operator | Keio Corporation ⓘ |
| owner | Keio Corporation ⓘ |
| primaryPurpose |
access to Tama Zoo
ⓘ
access to Tama Zoological Park ⓘ |
| railwaySignalling | automatic signalling ⓘ |
| regionServed | Tama area ⓘ |
| rollingStockOperator | Keio Corporation ⓘ |
| serves |
Keio Rail-Land
ⓘ
Tama Tech (former amusement park site) ⓘ Tama Zoological Park ⓘ |
| serviceType | passenger ⓘ |
| startingStation | Takahatafudō Station NERFINISHED ⓘ |
| terminus |
Takahatafudō Station
NERFINISHED
ⓘ
Tama-Dōbutsukōen Station NERFINISHED ⓘ |
| trackGaugeType | narrow gauge ⓘ |
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: Keio Dōbutsuen Line Description of subject: The Keio Dōbutsuen Line is a short branch railway line in Hino, Tokyo, operated by Keio Corporation, primarily serving visitors to the Tama Zoo and nearby attractions.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Keio Dōbutsuen Line
linked to: Keio Dōbutsuen Line