Tobu Urban Park Line
E848500
Tobu Urban Park Line is a Japanese private railway line operated by Tobu Railway that runs through the northern suburbs of the Greater Tokyo area, connecting key commuter hubs.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Tōbu Urban Park Line | 8 |
| Tobu Urban Park Line canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T6305465 — 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: Tobu Urban Park Line Context triple: [Omiya Station, servedByLine, Tobu Urban Park Line]
-
A.
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.
-
B.
Tokyu Den-en-toshi Line
Tokyu Den-en-toshi Line is a major private railway line in the Tokyo metropolitan area that connects central Tokyo with suburban residential districts, including service to Shibuya.
-
C.
Tokyu Meguro Line
The Tokyu Meguro Line is a commuter railway line in Tokyo and Kanagawa operated by Tokyu Corporation, linking central Tokyo with its southwestern suburbs and offering through services onto various subway and other private railway lines.
-
D.
Seibu Toshima Line
The Seibu Toshima Line is a short commuter railway line in Tokyo, Japan, operated by Seibu Railway and connecting Nerima and Toshimaen in the city’s northwest.
-
E.
Toei Mita Line
The Toei Mita Line is a Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, running north–south through the city and connecting central Tokyo with its northern suburbs.
- 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: Tobu Urban Park Line Target entity description: Tobu Urban Park Line is a Japanese private railway line operated by Tobu Railway that runs through the northern suburbs of the Greater Tokyo area, connecting key commuter hubs.
-
A.
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.
-
B.
Tokyu Den-en-toshi Line
Tokyu Den-en-toshi Line is a major private railway line in the Tokyo metropolitan area that connects central Tokyo with suburban residential districts, including service to Shibuya.
-
C.
Tokyu Meguro Line
The Tokyu Meguro Line is a commuter railway line in Tokyo and Kanagawa operated by Tokyu Corporation, linking central Tokyo with its southwestern suburbs and offering through services onto various subway and other private railway lines.
-
D.
Seibu Toshima Line
The Seibu Toshima Line is a short commuter railway line in Tokyo, Japan, operated by Seibu Railway and connecting Nerima and Toshimaen in the city’s northwest.
-
E.
Toei Mita Line
The Toei Mita Line is a Tokyo subway line operated by the Tokyo Metropolitan Bureau of Transportation, running north–south through the city and connecting central Tokyo with its northern suburbs.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
railway line in Japan ⓘ |
| category |
Railway lines in Chiba Prefecture
ⓘ
Railway lines in Saitama Prefecture ⓘ Tobu Railway lines ⓘ |
| connects |
Funabashi Station
NERFINISHED
ⓘ
Ōmiya Station NERFINISHED ⓘ |
| connectsTo |
JR East network at Funabashi Station
ⓘ
JR East network at Ōmiya Station ⓘ Tobu Skytree Line via shared stations ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| fareSystem | integrated with Tobu Railway fare system ⓘ |
| formerName | Tobu Noda Line ⓘ |
| hasAbbreviation | TD line code on Tobu network maps ⓘ |
| hasColor | light blue (line color) ⓘ |
| hasRollingStock |
Tobu 10030 series EMU
ⓘ
linked to:
Tobu 10030 series
Tobu 60000 series EMU ⓘ Tobu 8000 series EMU ⓘ |
| isPartOf |
Tobu Railway network
ⓘ
linked to:
Tobu Railway lines
|
| lineLength | 62.7 km ⓘ |
| locatedIn |
Greater Tokyo Area
ⓘ
linked to:
Tokyo metropolitan area
Japan ⓘ Kantō region ⓘ |
| numberOfStations | 35 ⓘ |
| numberOfTracks | double track ⓘ |
| opened | 1911 ⓘ |
| operator | Tobu Railway ⓘ |
| owner | Tobu Railway ⓘ |
| passesThrough |
Chiba Prefecture
NERFINISHED
ⓘ
Gunma Prefecture ⓘ Saitama Prefecture ⓘ |
| primaryFunction | linking key commuter hubs in northern Greater Tokyo ⓘ |
| primaryUse | commuter transport ⓘ |
| railwaySignaling | automatic block system ⓘ |
| regionServed |
Chiba Prefecture
NERFINISHED
ⓘ
Saitama Prefecture NERFINISHED ⓘ |
| renamedOn | 2014-04-01 ⓘ |
| serves | northern suburbs of Tokyo ⓘ |
| serviceType |
express
ⓘ
local ⓘ semi-express ⓘ |
| terminus |
Funabashi Station
NERFINISHED
ⓘ
Ōmiya Station NERFINISHED ⓘ |
| trackGauge | 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: Tobu Urban Park Line Description of subject: Tobu Urban Park Line is a Japanese private railway line operated by Tobu Railway that runs through the northern suburbs of the Greater Tokyo area, connecting key commuter hubs.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Tobu Urban Park Line
linked to: Tobu Urban Park Line
linked to: Tobu Urban Park Line
subject linked to:
Ōnari Station on Tobu Urban Park Line
subject linked to:
Ōnari Station on Tobu Urban Park Line
linked to: Tobu Urban Park Line
linked to: Tobu Urban Park Line
linked to: Tobu Urban Park Line
linked to: Tobu Urban Park Line
subject linked to:
western Chiba Prefecture
linked to: Tobu Urban Park Line