Ueno-Tokyo Line
E325648
The Ueno-Tokyo Line is a railway corridor in central Tokyo that connects Ueno Station with Tokyo Station, enabling through-services between multiple JR East commuter and intercity lines.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Ueno–Tokyo Line | 3 |
| Tōkaidō Main Line (Ueno–Tokyo Line services) | 1 |
| Ueno-Tokyo Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1592363 — 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: Ueno-Tokyo Line Context triple: [Tokyo Station, serves, Ueno-Tokyo Line]
-
A.
Saikyō Line
The Saikyō Line is a major JR East railway line in the Tokyo metropolitan area that connects central Tokyo with Saitama Prefecture, serving as a key commuter route.
-
B.
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.
-
C.
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.
-
D.
Tobu Nikko Line
The Tobu Nikko Line is a private railway line in Japan operated by Tobu Railway that connects the Tokyo area with the historic and scenic Nikko region in Tochigi Prefecture.
-
E.
Yotsubashi Line
The Yotsubashi Line is a rapid transit line in Osaka, Japan, forming part of the Osaka Metro network and serving key north–south corridors through the city.
- 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: Ueno-Tokyo Line Target entity description: The Ueno-Tokyo Line is a railway corridor in central Tokyo that connects Ueno Station with Tokyo Station, enabling through-services between multiple JR East commuter and intercity lines.
-
A.
Saikyō Line
The Saikyō Line is a major JR East railway line in the Tokyo metropolitan area that connects central Tokyo with Saitama Prefecture, serving as a key commuter route.
-
B.
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.
-
C.
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.
-
D.
Tobu Nikko Line
The Tobu Nikko Line is a private railway line in Japan operated by Tobu Railway that connects the Tokyo area with the historic and scenic Nikko region in Tochigi Prefecture.
-
E.
Yotsubashi Line
The Yotsubashi Line is a rapid transit line in Osaka, Japan, forming part of the Osaka Metro network and serving key north–south corridors through the city.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
railway corridor
ⓘ
railway line ⓘ |
| connectsDirection | north-south through central Tokyo ⓘ |
| connectsRailwayLineCorridors | northern JR East main lines and Tokaido Main Line ⓘ |
| connectsStation |
Tokyo Station
NERFINISHED
ⓘ
Ueno Station NERFINISHED ⓘ |
| constructionPurpose | to relieve congestion on the Yamanote Line and Keihin-Tohoku Line between Ueno and Tokyo ⓘ |
| country | Japan ⓘ |
| electrification | overhead catenary ⓘ |
| electrificationVoltage | 1500 V DC ⓘ |
| enablesThroughServiceBetween | Ueno Station and Tokyo Station ⓘ |
| enablesThroughServiceWithLine |
Jōban Line (Rapid)
ⓘ
surface form:
Joban Line Rapid Service
Shonan-Shinjuku Line NERFINISHED ⓘ Takasaki Line NERFINISHED ⓘ Tokaido Main Line NERFINISHED ⓘ Utsunomiya Line NERFINISHED ⓘ |
| hasEndpointStation |
Tokyo Station
NERFINISHED
ⓘ
Ueno Station NERFINISHED ⓘ |
| hasNumberOfTracks | 2 ⓘ |
| infrastructureType | elevated railway ⓘ |
| lineLength | approximately 3.8 km ⓘ |
| locatedIn |
Japan
ⓘ
Tokyo ⓘ |
| locatedInPrefecture |
Tokyo Prefecture
ⓘ
surface form:
Tokyo Metropolis
|
| nativeLanguage | Japanese ⓘ |
| openingDate | 2015-03-14 ⓘ |
| operator |
East Japan Railway Company
ⓘ
East Japan Railway Company ⓘ
surface form:
JR East
|
| owner |
East Japan Railway Company
ⓘ
surface form:
JR East
|
| partOfNetwork |
JR East urban network
ⓘ
surface form:
JR East commuter rail network
|
| passesThroughArea | central Tokyo ⓘ |
| purpose | to provide direct through-services between northern and southern JR East lines via central Tokyo ⓘ |
| railwaySystem |
East Japan Railway Company
ⓘ
surface form:
JR East
|
| regionServed |
Kantō region
ⓘ
surface form:
Kanto region
|
| serviceType |
commuter rail
ⓘ
intercity rail ⓘ |
| status | in operation ⓘ |
| trackGauge |
1067 mm
ⓘ
Cape gauge ⓘ |
| usesRollingStockFromLine |
Jōban Line (Rapid)
ⓘ
surface form:
Joban Line Rapid Service
Takasaki Line NERFINISHED ⓘ Tokaido Main Line NERFINISHED ⓘ Utsunomiya Line 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: Ueno-Tokyo Line Description of subject: The Ueno-Tokyo Line is a railway corridor in central Tokyo that connects Ueno Station with Tokyo Station, enabling through-services between multiple JR East commuter and intercity lines.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Tōkaidō Main Line (Ueno–Tokyo Line services)
this entity surface form:
Ueno–Tokyo Line
this entity surface form:
Ueno–Tokyo Line
this entity surface form:
Ueno–Tokyo Line