Den-en-toshi Line
E793963
The Den-en-toshi Line is a major commuter railway line in the Greater Tokyo area that connects central Tokyo with suburban residential districts.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Den-en-toshi Line canonical | 1 |
| Tamaden Line | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6154335 — 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: Den-en-toshi Line Context triple: [Tokyu Corporation, operatesRailwayLine, Den-en-toshi Line]
-
A.
Honshi-Bisan Line
The Honshi-Bisan Line is a railway line in Japan that forms the rail link across the Seto Inland Sea between Honshu and Shikoku, running over the Seto Ohashi Bridge system.
-
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.
Sōbu Line
The Sōbu Line is a major Japan Railways (JR) commuter and intercity railway line in the Tokyo–Chiba area, connecting central Tokyo with eastern suburbs and cities in Chiba Prefecture.
-
E.
Hanzōmon Line
The Hanzōmon Line is a Tokyo Metro subway line in Tokyo, Japan, connecting central districts with eastern and southwestern suburbs as part of the city’s urban rail network.
- 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: Den-en-toshi Line Target entity description: The Den-en-toshi Line is a major commuter railway line in the Greater Tokyo area that connects central Tokyo with suburban residential districts.
-
A.
Honshi-Bisan Line
The Honshi-Bisan Line is a railway line in Japan that forms the rail link across the Seto Inland Sea between Honshu and Shikoku, running over the Seto Ohashi Bridge system.
-
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.
Sōbu Line
The Sōbu Line is a major Japan Railways (JR) commuter and intercity railway line in the Tokyo–Chiba area, connecting central Tokyo with eastern suburbs and cities in Chiba Prefecture.
-
E.
Hanzōmon Line
The Hanzōmon Line is a Tokyo Metro subway line in Tokyo, Japan, connecting central districts with eastern and southwestern suburbs as part of the city’s urban rail network.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Tokyo railway line
ⓘ
commuter rail line ⓘ railway line ⓘ |
| colorOnMaps | dark green ⓘ |
| connectsArea |
Kawasaki suburban area
ⓘ
Sagamihara suburban area ⓘ Shibuya ⓘ Yokohama suburban area ⓘ
linked to:
Kanagawa suburbs
|
| connectsTo | Hanzomon Line ⓘ |
| country | Japan ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| endingStation | Chuo-Rinkan Station NERFINISHED ⓘ |
| gauge | 1,067 mm ⓘ |
| hasRollingStock |
Tobu 50050 series
ⓘ
Tokyo Metro 08 series ⓘ Tokyo Metro 8000 series ⓘ Tokyu 2020 series ⓘ Tokyu 5000 series ⓘ |
| hasServicePattern |
express trains
ⓘ
local trains ⓘ semi-express trains ⓘ |
| hasStation |
Aobadai Station
NERFINISHED
ⓘ
Azamino Station NERFINISHED ⓘ Eda Station NERFINISHED ⓘ Futako-tamagawa Station NERFINISHED ⓘ Ichigao Station NERFINISHED ⓘ Ikejiri-ohashi Station NERFINISHED ⓘ Mizonokuchi Station NERFINISHED ⓘ Nagatsuta Station NERFINISHED ⓘ Sakura-shimmachi Station NERFINISHED ⓘ Sangen-jaya Station ⓘ Tama-plaza Station NERFINISHED ⓘ |
| locatedIn |
Greater Tokyo Area
ⓘ
linked to:
Tokyo metropolitan area
Tokyo ⓘ |
| openedAsCurrentForm | 1970s ⓘ |
| operator |
Tokyu Corporation
ⓘ
Tokyu Railways ⓘ |
| owner | Tokyu Corporation ⓘ |
| partOfNetwork |
Tokyu network
ⓘ
linked to:
Tokyu railway network
|
| predecessor |
Tamaden Line
ⓘ
linked to:
Den-en-toshi Line
|
| primaryUse | commuter transport ⓘ |
| serves |
central Tokyo
ⓘ
suburban residential districts ⓘ |
| startingStation | Shibuya Station ⓘ |
| terminusStation |
Chuo-Rinkan Station
NERFINISHED
ⓘ
Shibuya Station ⓘ |
| throughServicesWith |
Tobu Isesaki Line
ⓘ
Tobu Nikko Line ⓘ Tobu Skytree Line ⓘ Tokyo Metro Hanzomon 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: Den-en-toshi Line Description of subject: The Den-en-toshi Line is a major commuter railway line in the Greater Tokyo area that connects central Tokyo with suburban residential districts.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Den-en-toshi Line