Itsukaichi Line
E692568
The Itsukaichi Line is a regional railway line in western Tokyo, Japan, operated by JR East, connecting suburban communities with the broader Tokyo rail network.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Itsukaichi Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5935534 — 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: Itsukaichi Line Context triple: [JR East urban network, hasLine, Itsukaichi Line]
-
A.
Marunouchi Line
The Marunouchi Line is one of Tokyo’s main subway lines, forming a central loop and radial route that connects key business, shopping, and transit hubs across the city.
-
B.
Sennichimae Line
The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban subway network.
-
C.
Karasuma Line
The Karasuma Line is a major Kyoto Municipal Subway line running north–south through Kyoto, connecting key districts and transportation hubs including Kyoto Station.
-
D.
Meitetsu Mikawa Line
The Meitetsu Mikawa Line is a Japanese railway line in Aichi Prefecture operated by Nagoya Railroad (Meitetsu), connecting several cities in the region including Toyota City.
-
E.
Fukutoshin Line
The Fukutoshin Line is a Tokyo Metro subway line in Tokyo, Japan, connecting major commercial and residential districts such as Shibuya, Shinjuku, and Ikebukuro.
- 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: Itsukaichi Line Target entity description: The Itsukaichi Line is a regional railway line in western Tokyo, Japan, operated by JR East, connecting suburban communities with the broader Tokyo rail network.
-
A.
Marunouchi Line
The Marunouchi Line is one of Tokyo’s main subway lines, forming a central loop and radial route that connects key business, shopping, and transit hubs across the city.
-
B.
Sennichimae Line
The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban subway network.
-
C.
Karasuma Line
The Karasuma Line is a major Kyoto Municipal Subway line running north–south through Kyoto, connecting key districts and transportation hubs including Kyoto Station.
-
D.
Meitetsu Mikawa Line
The Meitetsu Mikawa Line is a Japanese railway line in Aichi Prefecture operated by Nagoya Railroad (Meitetsu), connecting several cities in the region including Toyota City.
-
E.
Fukutoshin Line
The Fukutoshin Line is a Tokyo Metro subway line in Tokyo, Japan, connecting major commercial and residential districts such as Shibuya, Shinjuku, and Ikebukuro.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
railway line ⓘ |
| connectsWith |
Chūō Line (Rapid)
NERFINISHED
ⓘ
Hachikō Line NERFINISHED ⓘ Musashino Line NERFINISHED ⓘ Seibu Haijima Line NERFINISHED ⓘ Ōme Line NERFINISHED ⓘ |
| country | Japan ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| electrifiedSince | 20th century ⓘ |
| endingStation | Musashi-Itsukaichi Station NERFINISHED ⓘ |
| formerRollingStock |
101 series EMU
NERFINISHED
ⓘ
103 series EMU NERFINISHED ⓘ 201 series EMU NERFINISHED ⓘ 63 series EMU NERFINISHED ⓘ 72 series EMU NERFINISHED ⓘ |
| hasStation |
Haijima Station
NERFINISHED
ⓘ
Musashi-Itsukaichi Station NERFINISHED ⓘ |
| locale | Tokyo, Japan NERFINISHED ⓘ |
| locatedIn |
Tokyo
ⓘ
western Tokyo NERFINISHED ⓘ |
| numberOfTracks | single track ⓘ |
| opened | 1925 ⓘ |
| operator |
East Japan Railway Company
NERFINISHED
ⓘ
JR East NERFINISHED ⓘ |
| originalOperator | Japanese National Railways NERFINISHED ⓘ |
| owner | JR East NERFINISHED ⓘ |
| partOfNetwork | JR East metropolitan area network NERFINISHED ⓘ |
| primaryFunction |
commuter transport
ⓘ
regional rail transport ⓘ |
| regionServed | Tama area ⓘ |
| rollingStock |
E231 series EMU
NERFINISHED
ⓘ
E233 series EMU NERFINISHED ⓘ |
| serves |
Akiruno
NERFINISHED
ⓘ
Akishima NERFINISHED ⓘ Hinohara area (via bus connections) ⓘ |
| servicePattern | all-stations stopping ⓘ |
| serviceType | local trains ⓘ |
| signallingSystem | automatic closed block ⓘ |
| startingStation | Haijima Station NERFINISHED ⓘ |
| successorOperator | JR East NERFINISHED ⓘ |
| terminus |
Haijima Station
NERFINISHED
ⓘ
Musashi-Itsukaichi Station NERFINISHED ⓘ |
| trackGauge |
1067 mm
ⓘ
3 ft 6 in ⓘ |
| trainProtectionSystem | ATS-P 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: Itsukaichi Line Description of subject: The Itsukaichi Line is a regional railway line in western Tokyo, Japan, operated by JR East, connecting suburban communities with the broader Tokyo rail network.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.