Fukutoshin Line
E405537
The Fukutoshin Line is a Tokyo Metro subway line in Tokyo, Japan, connecting major commercial and residential districts such as Shibuya, Shinjuku, and Ikebukuro.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fukutoshin Line canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1860676 — 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: Fukutoshin Line Context triple: [Tokyo Metro, operatesLine, Fukutoshin Line]
-
A.
Marunouchi Line
The Marunouchi Line is one of Tokyo’s main subway lines, forming a central loop and radial route that connects key business, shopping, and transit hubs across the city.
-
B.
Sennichimae Line
The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban subway network.
-
C.
Imazatosuji Line
The Imazatosuji Line is a rapid transit line in Osaka, Japan, operated by Osaka Metro and serving as one of the city’s main north–south subway corridors.
-
D.
Takashinohama Line
The Takashinohama Line is a short commuter railway line in Osaka Prefecture, Japan, operated by Nankai Electric Railway and serving local passenger traffic.
-
E.
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.
- 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: Fukutoshin Line Target entity description: The Fukutoshin Line is a Tokyo Metro subway line in Tokyo, Japan, connecting major commercial and residential districts such as Shibuya, Shinjuku, and Ikebukuro.
-
A.
Marunouchi Line
The Marunouchi Line is one of Tokyo’s main subway lines, forming a central loop and radial route that connects key business, shopping, and transit hubs across the city.
-
B.
Sennichimae Line
The Sennichimae Line is a rapid transit line in Osaka, Japan, forming part of the city’s urban subway network.
-
C.
Imazatosuji Line
The Imazatosuji Line is a rapid transit line in Osaka, Japan, operated by Osaka Metro and serving as one of the city’s main north–south subway corridors.
-
D.
Takashinohama Line
The Takashinohama Line is a short commuter railway line in Osaka Prefecture, Japan, operated by Nankai Electric Railway and serving local passenger traffic.
-
E.
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.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
Tokyo Metro line
ⓘ
railway line in Japan ⓘ subway line ⓘ |
| character | underground ⓘ |
| connectsDistrict |
Ikebukuro
NERFINISHED
ⓘ
Shibuya NERFINISHED ⓘ Shinjuku NERFINISHED ⓘ |
| country | Japan ⓘ |
| depot |
Shin-Kiba Depot
ⓘ
Wakō Depot ⓘ |
| electrification | 1500 V DC overhead catenary ⓘ |
| endStation | Shibuya Station NERFINISHED ⓘ |
| gauge | 1067 mm ⓘ |
| hasStation |
Asaka Station
NERFINISHED
ⓘ
Asakadai Station NERFINISHED ⓘ Higashi-Shinjuku Station NERFINISHED ⓘ Ikebukuro Station NERFINISHED ⓘ Kita-Asaka Station NERFINISHED ⓘ Kita-sando Station NERFINISHED ⓘ Kotake-Mukaihara Station NERFINISHED ⓘ Meiji-jingumae Station NERFINISHED ⓘ Nishi-Waseda Station NERFINISHED ⓘ Shibuya Station NERFINISHED ⓘ Shiki Station NERFINISHED ⓘ Shinjuku-sanchome Station NERFINISHED ⓘ Wakōshi Station NERFINISHED ⓘ Zoshigaya Station NERFINISHED ⓘ |
| lineCode | F ⓘ |
| lineColor | brown ⓘ |
| locatedIn |
Japan
ⓘ
Tokyo ⓘ |
| nativeName | 東京メトロ副都心線 NERFINISHED ⓘ |
| nativeNameLanguage | ja ⓘ |
| officialName | Tokyo Metro Fukutoshin Line NERFINISHED ⓘ |
| openingDate | 2008-06-14 ⓘ |
| operator | Tokyo Metro ⓘ |
| ownedBy | Tokyo Metro ⓘ |
| partialOpeningDate | 1994-12-07 ⓘ |
| railwaySign | Fukutoshin Line symbol F brown circle ⓘ |
| servesArea |
Shibuya
NERFINISHED
ⓘ
Shinjuku NERFINISHED ⓘ Toshima NERFINISHED ⓘ |
| startStation | Wakōshi Station NERFINISHED ⓘ |
| terminus |
Shibuya Station
NERFINISHED
ⓘ
Wakōshi Station NERFINISHED ⓘ |
| throughServiceWith |
Minatomirai Line
NERFINISHED
ⓘ
Seibu Ikebukuro Line NERFINISHED ⓘ Seibu Yurakucho Line NERFINISHED ⓘ Tobu Tojo Line NERFINISHED ⓘ Tokyu Toyoko Line NERFINISHED ⓘ |
| trackConfiguration | double track ⓘ |
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: Fukutoshin Line Description of subject: The Fukutoshin Line is a Tokyo Metro subway line in Tokyo, Japan, connecting major commercial and residential districts such as Shibuya, Shinjuku, and Ikebukuro.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.