Joban Line (local services)
E575100
The Joban Line (local services) is a commuter rail service in the Greater Tokyo area of Japan, providing frequent local train connections along the Jōban Line corridor.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Joban Line (local services) canonical | 1 |
| Jōban Line (local) or Jōban Line Rapid Service interface | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6199484 — 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: Joban Line (local services) Context triple: [E235 series EMU, usedOnLine, Joban Line (local services)]
-
A.
JR Saikyo Line
The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
-
B.
Keio Line bus services
Keio Line bus services are a network of bus routes operated by the Keio Group in the Tokyo area, providing local and feeder connections to Keio railway stations and surrounding neighborhoods.
-
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.
Sōbu Line Rapid
The Sōbu Line Rapid is a Japanese railway service operated by JR East that provides fast commuter and intercity connections between central Tokyo and eastern Chiba Prefecture.
-
E.
Yurikamome Line
The Yurikamome Line is an automated, elevated transit line in Tokyo that connects central Tokyo with the Odaiba waterfront area, offering scenic views including a crossing of the Rainbow Bridge.
- 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: Joban Line (local services) Target entity description: The Joban Line (local services) is a commuter rail service in the Greater Tokyo area of Japan, providing frequent local train connections along the Jōban Line corridor.
-
A.
JR Saikyo Line
The JR Saikyo Line is a major commuter rail line in the Tokyo metropolitan area operated by JR East, connecting central Tokyo with Saitama Prefecture and serving key hubs such as Shibuya and Shinjuku.
-
B.
Keio Line bus services
Keio Line bus services are a network of bus routes operated by the Keio Group in the Tokyo area, providing local and feeder connections to Keio railway stations and surrounding neighborhoods.
-
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.
Sōbu Line Rapid
The Sōbu Line Rapid is a Japanese railway service operated by JR East that provides fast commuter and intercity connections between central Tokyo and eastern Chiba Prefecture.
-
E.
Yurikamome Line
The Yurikamome Line is an automated, elevated transit line in Tokyo that connects central Tokyo with the Odaiba waterfront area, offering scenic views including a crossing of the Rainbow Bridge.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | commuter rail service ⓘ |
| category |
JR East commuter rail lines
ⓘ
Rail transport in Chiba Prefecture ⓘ Rail transport in Fukushima Prefecture ⓘ Rail transport in Ibaraki Prefecture ⓘ Rail transport in Tokyo ⓘ |
| connectsWith |
Kitasenju Station
NERFINISHED
ⓘ
Nippori Station ⓘ Tokyo Metro Chiyoda Line ⓘ Ueno Station ⓘ Ueno-Tokyo Line ⓘ |
| country | Japan ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| fareSystem |
JR East fare system
ⓘ
distance-based fares ⓘ |
| gauge |
1,067 mm
ⓘ
Cape gauge ⓘ |
| languageOfSignage |
English
ⓘ
Japanese ⓘ |
| locatedIn |
Greater Tokyo Area
ⓘ
linked to:
Tokyo metropolitan area
Kantō region ⓘ |
| onboardServices | non-reserved seating ⓘ |
| openingDateOfLineSectionUsed | 1896 (Jōban Line historical opening) ⓘ |
| operatedBy |
East Japan Railway Company
ⓘ
JR East ⓘ
linked to:
East Japan Railway Company
|
| operatorHeadquarters | Tokyo ⓘ |
| owner | East Japan Railway Company ⓘ |
| ownerType | private railway company ⓘ |
| partOf | Jōban Line ⓘ |
| primaryFunction | commuter transport ⓘ |
| regionServed |
Chiba Prefecture
NERFINISHED
ⓘ
Fukushima Prefecture ⓘ Ibaraki Prefecture ⓘ Tokyo Metropolis ⓘ
linked to:
Tokyo Prefecture
|
| rollingStock |
E231 series EMU
ⓘ
E233 series EMU ⓘ |
| routeUsage |
commuter traffic
ⓘ
school traffic ⓘ |
| safetySystem |
ATS-P
ⓘ
ATS-SN ⓘ |
| serviceClass | ordinary class only ⓘ |
| serviceFrequency | high frequency in peak hours ⓘ |
| servicePattern | frequent stopping services ⓘ |
| serviceType |
all-stations service
ⓘ
local train ⓘ |
| ticketing | Suica compatible ⓘ |
| usesRailwayLine | Jōban Line ⓘ |
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: Joban Line (local services) Description of subject: The Joban Line (local services) is a commuter rail service in the Greater Tokyo area of Japan, providing frequent local train connections along the Jōban Line corridor.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Joban Line (local services)