Tōkyū Ikegami Line
E598434
The Tōkyū Ikegami Line is a commuter railway line in Tokyo operated by Tokyu Corporation, connecting residential areas in Ōta Ward with central districts such as Shinagawa.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Tōkyū Ikegami Line canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T3530418 — 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: Tōkyū Ikegami Line Context triple: [Shinagawa, servedByRailwayLine, Tōkyū Ikegami Line]
-
A.
Toei Oedo Line
The Toei Oedo Line is a major Tokyo subway loop and radial line operated by the Tokyo Metropolitan Bureau of Transportation, connecting central districts with many key commercial and residential areas.
-
B.
Rinkai Line
The Rinkai Line is a Tokyo railway line that connects central Tokyo with the waterfront Odaiba area and other bayside districts.
-
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.
Keio Inokashira Line
The Keio Inokashira Line is a private railway line in Tokyo operated by Keio Corporation, connecting Shibuya with the western suburb of Kichijōji and serving several popular residential and commercial districts along the way.
-
E.
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.
- 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: Tōkyū Ikegami Line Target entity description: The Tōkyū Ikegami Line is a commuter railway line in Tokyo operated by Tokyu Corporation, connecting residential areas in Ōta Ward with central districts such as Shinagawa.
-
A.
Toei Oedo Line
The Toei Oedo Line is a major Tokyo subway loop and radial line operated by the Tokyo Metropolitan Bureau of Transportation, connecting central districts with many key commercial and residential areas.
-
B.
Rinkai Line
The Rinkai Line is a Tokyo railway line that connects central Tokyo with the waterfront Odaiba area and other bayside districts.
-
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.
Keio Inokashira Line
The Keio Inokashira Line is a private railway line in Tokyo operated by Keio Corporation, connecting Shibuya with the western suburb of Kichijōji and serving several popular residential and commercial districts along the way.
-
E.
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.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail line
ⓘ
railway line in Japan ⓘ |
| category |
Rail transport in Tokyo
ⓘ
Railway lines of Japan ⓘ Tokyu Corporation lines ⓘ |
| city | Tokyo ⓘ |
| connects |
central districts such as Shinagawa
ⓘ
residential areas in Ōta Ward ⓘ |
| connectsToArea | Shinagawa NERFINISHED ⓘ |
| country | Japan ⓘ |
| electrification | 1,500 V DC overhead catenary ⓘ |
| electrified | yes ⓘ |
| hasMode | electric multiple unit trains ⓘ |
| isInMetropolitanArea | Greater Tokyo Area NERFINISHED ⓘ |
| languageOfName | Japanese ⓘ |
| locatedIn |
Japan
ⓘ
Tokyo ⓘ |
| locatedInWard | Ōta Ward NERFINISHED ⓘ |
| namedAfter | Ikegami area ⓘ |
| numberOfTracks | double track ⓘ |
| operator | Tokyu Corporation NERFINISHED ⓘ |
| owner | Tokyu Corporation NERFINISHED ⓘ |
| partOfNetwork | Tokyu railway network NERFINISHED ⓘ |
| primaryFunction | commuter transport ⓘ |
| publicTransportSystem | Tokyo urban rail network ⓘ |
| railwayCompany | Tokyu Corporation NERFINISHED ⓘ |
| railwayGauge | 1,067 mm ⓘ |
| region | Kantō region ⓘ |
| serves | residential areas in Ōta Ward ⓘ |
| servesArea | Ōta Ward NERFINISHED ⓘ |
| trackGauge | narrow gauge ⓘ |
| transportType |
commuter rail
ⓘ
urban rail ⓘ |
| usesRollingStock |
Tokyu 1000 series EMU
NERFINISHED
ⓘ
Tokyu 3000 series EMU NERFINISHED ⓘ Tokyu 7000 series EMU 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: Tōkyū Ikegami Line Description of subject: The Tōkyū Ikegami Line is a commuter railway line in Tokyo operated by Tokyu Corporation, connecting residential areas in Ōta Ward with central districts such as Shinagawa.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Ōta, Tokyo