Ikegami Line
E799028
The Ikegami Line is a commuter railway line in Tokyo, Japan, serving local neighborhoods with frequent urban transit as part of the Tokyu network.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ikegami Line canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T6154338 — 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: Ikegami Line Context triple: [Tokyu Corporation, operatesRailwayLine, Ikegami Line]
-
A.
Oimachi Line
The Oimachi Line is a commuter railway line in Tokyo, Japan, forming part of the Tokyu network and connecting central Tokyo with its southwestern suburbs.
-
B.
Negishi Line
The Negishi Line is a railway line in the Greater Tokyo area of Japan operated by JR East, connecting Yokohama with Ōfuna and serving as part of the Keihin-Tōhoku/Negishi through service corridor.
-
C.
Den-en-toshi Line
The Den-en-toshi Line is a major commuter railway line in the Greater Tokyo area that connects central Tokyo with suburban residential districts.
-
D.
Yamatoji Line
The Yamatoji Line is a railway line in Japan operated by JR West that connects Osaka with Nara, serving as a key commuter and intercity route in the Kansai region.
-
E.
Hanzōmon Line
The Hanzōmon Line is a Tokyo Metro subway line in Tokyo, Japan, connecting central districts with eastern and southwestern suburbs as part of the city’s urban rail network.
- 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: Ikegami Line Target entity description: The Ikegami Line is a commuter railway line in Tokyo, Japan, serving local neighborhoods with frequent urban transit as part of the Tokyu network.
-
A.
Oimachi Line
The Oimachi Line is a commuter railway line in Tokyo, Japan, forming part of the Tokyu network and connecting central Tokyo with its southwestern suburbs.
-
B.
Negishi Line
The Negishi Line is a railway line in the Greater Tokyo area of Japan operated by JR East, connecting Yokohama with Ōfuna and serving as part of the Keihin-Tōhoku/Negishi through service corridor.
-
C.
Den-en-toshi Line
The Den-en-toshi Line is a major commuter railway line in the Greater Tokyo area that connects central Tokyo with suburban residential districts.
-
D.
Yamatoji Line
The Yamatoji Line is a railway line in Japan operated by JR West that connects Osaka with Nara, serving as a key commuter and intercity route in the Kansai region.
-
E.
Hanzōmon Line
The Hanzōmon Line is a Tokyo Metro subway line in Tokyo, Japan, connecting central districts with eastern and southwestern suburbs as part of the city’s urban rail network.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
Tokyu Corporation line
ⓘ
commuter rail line ⓘ railway line ⓘ |
| connectsWith |
Keikyu Airport Line at Kamata Station
ⓘ
Keikyu Main Line at Kamata Station ⓘ Toei Asakusa Line at Gotanda Station ⓘ Yamanote Line at Gotanda Station ⓘ |
| country | Japan ⓘ |
| currentStatus | in operation ⓘ |
| depot | Yukigaya-Otsuka depot ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| electrified | yes ⓘ |
| endingStation | Kamata Station NERFINISHED ⓘ |
| fareSystem | Tokyu fare system ⓘ |
| frequency | high-frequency urban service ⓘ |
| hasServicePattern | all-stations local ⓘ |
| lineColor | orange ⓘ |
| lineLength | approximately 10.8 km ⓘ |
| locale |
Tokyo Metropolis
ⓘ
linked to:
Tokyo Metropolis, Japan
|
| locatedIn | Tokyo ⓘ |
| network | Tokyu network ⓘ |
| numberOfStations | 15 ⓘ |
| numberOfTracks | double track ⓘ |
| openedBy | Ikegami Electric Railway ⓘ |
| openingDate | 1922 ⓘ |
| operator | Tokyu Corporation ⓘ |
| owner | Tokyu Corporation ⓘ |
| passengerFocus | local neighborhoods ⓘ |
| primaryRollingStock |
Tokyu 1000 series EMU
ⓘ
Tokyu 7000 series EMU ⓘ
linked to:
Tokyu 7000 series
Tokyu 7700 series EMU ⓘ |
| purpose | commuter transport ⓘ |
| railGauge | 1,067 mm ⓘ |
| region |
Kanto region
ⓘ
linked to:
Kantō region
|
| safetySystem | automatic train stop (ATS) ⓘ |
| servedBy | electric multiple units ⓘ |
| servesArea |
Ota Ward
ⓘ
Shinagawa Ward ⓘ
linked to:
Shinagawa
|
| serviceType |
commuter rail
ⓘ
urban transit ⓘ |
| startingStation | Gotanda Station NERFINISHED ⓘ |
| terminusStation |
Gotanda Station
NERFINISHED
ⓘ
Kamata Station NERFINISHED ⓘ |
| ticketing | accepts IC cards such as Suica and PASMO ⓘ |
| trackConfiguration | standard-gauge narrow-gauge Japanese line (1,067 mm) ⓘ |
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: Ikegami Line Description of subject: The Ikegami Line is a commuter railway line in Tokyo, Japan, serving local neighborhoods with frequent urban transit as part of the Tokyu network.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.