Keihin-Tōhoku Line
E314654
The Keihin-Tōhoku Line is a major JR East commuter rail line in the Greater Tokyo area that runs north–south through Tokyo, connecting Saitama and Kanagawa prefectures.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Keihin-Tōhoku Line canonical | 14 |
| JR Keihin-Tōhoku Line | 6 |
| Keihin–Tōhoku Line | 3 |
| Keihin-Tohoku Line | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1592356 — 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: Keihin-Tōhoku Line Context triple: [Tokyo Station, serves, Keihin-Tōhoku Line]
-
A.
Jōetsu Line
The Jōetsu Line is a major railway line in Japan operated by JR East that connects the Kanto region with Niigata Prefecture through the mountainous interior of Honshu.
-
B.
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.
-
C.
Sakaisuji Line
The Sakaisuji Line is a rapid transit line in Osaka, Japan, forming part of the Osaka Metro network and connecting key districts through north–south underground service.
-
D.
Utsunomiya Line
The Utsunomiya Line is a major JR East railway corridor in Japan connecting Tokyo with Utsunomiya and other cities in Tochigi Prefecture, serving as an important commuter and intercity route in the Kanto region.
-
E.
Tanagawa Line
The Tanagawa Line is a short commuter railway line in Osaka Prefecture, Japan, operated by Nankai Electric Railway and serving local passengers near the coastal area.
- 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: Keihin-Tōhoku Line Target entity description: The Keihin-Tōhoku Line is a major JR East commuter rail line in the Greater Tokyo area that runs north–south through Tokyo, connecting Saitama and Kanagawa prefectures.
-
A.
Jōetsu Line
The Jōetsu Line is a major railway line in Japan operated by JR East that connects the Kanto region with Niigata Prefecture through the mountainous interior of Honshu.
-
B.
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.
-
C.
Sakaisuji Line
The Sakaisuji Line is a rapid transit line in Osaka, Japan, forming part of the Osaka Metro network and connecting key districts through north–south underground service.
-
D.
Utsunomiya Line
The Utsunomiya Line is a major JR East railway corridor in Japan connecting Tokyo with Utsunomiya and other cities in Tochigi Prefecture, serving as an important commuter and intercity route in the Kanto region.
-
E.
Tanagawa Line
The Tanagawa Line is a short commuter railway line in Osaka Prefecture, Japan, operated by Nankai Electric Railway and serving local passengers near the coastal area.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
railway line in Japan ⓘ |
| abbreviation | Keihin-Tōhoku ⓘ |
| colorOnJRRouteMaps | light blue ⓘ |
| connectsPrefecture |
Kanagawa Prefecture
NERFINISHED
ⓘ
Saitama Prefecture NERFINISHED ⓘ Tokyo ⓘ |
| country | Japan ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| fareSystem | JR East fare system ⓘ |
| gauge |
1,067 mm
ⓘ
Cape gauge ⓘ |
| hasServicePattern |
local trains
ⓘ
rapid trains ⓘ |
| interchangesWith |
Negishi Line
NERFINISHED
ⓘ
Tokaido Main Line NERFINISHED ⓘ Yamanote Line NERFINISHED ⓘ |
| isMajorJRLine | true ⓘ |
| languageOfName | Japanese ⓘ |
| lineCode | JK ⓘ |
| locatedIn |
Greater Tokyo Area
ⓘ
linked to:
Tokyo metropolitan area
Kanagawa Prefecture NERFINISHED ⓘ Saitama Prefecture NERFINISHED ⓘ Tokyo ⓘ |
| majorNode |
Omiya Station
NERFINISHED
ⓘ
Tokyo Station NERFINISHED ⓘ Ueno Station NERFINISHED ⓘ Yokohama Station NERFINISHED ⓘ |
| nameWrittenInJapanese | 京浜東北線 ⓘ |
| operator |
East Japan Railway Company
ⓘ
JR East ⓘ
linked to:
East Japan Railway Company
|
| owner | East Japan Railway Company ⓘ |
| partOfNetwork |
JR East metropolitan network
ⓘ
linked to:
JR East urban network
|
| primaryFunction | commuter transport ⓘ |
| region | Kantō region ⓘ |
| runsDirection | north–south ⓘ |
| safetySystem |
ATC
ⓘ
ATS ⓘ |
| servesArea | Tokyo metropolitan area ⓘ |
| serviceType |
commuter rail
ⓘ
urban rail ⓘ |
| ticketing |
IC card compatible
ⓘ
Suica compatible ⓘ |
| trackConfiguration | double track ⓘ |
| usesRollingStock |
E233 series EMU
ⓘ
E235 series EMU ⓘ |
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: Keihin-Tōhoku Line Description of subject: The Keihin-Tōhoku Line is a major JR East commuter rail line in the Greater Tokyo area that runs north–south through Tokyo, connecting Saitama and Kanagawa prefectures.
Referenced by (24)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Keihin-Tōhoku Line
linked to: Keihin-Tōhoku Line
linked to: Keihin-Tōhoku Line
linked to: Keihin-Tōhoku Line
linked to: Keihin-Tōhoku Line
linked to: Keihin-Tōhoku Line
linked to: Keihin-Tōhoku Line
subject linked to:
Ota, Japan
linked to: Keihin-Tōhoku Line
linked to: Keihin-Tōhoku Line
linked to: Keihin-Tōhoku Line