Nagatacho
E686355
Nagatacho is a central district in Tokyo, Japan, known as the political heart of the country and home to key government institutions such as the National Diet Building.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T7276206 — 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: Nagatacho Context triple: [Tokyo Metro Yurakucho Line at Nagatacho, locatedIn, Nagatacho]
-
A.
Toyonaka
Toyonaka is a suburban city in Japan’s Kansai region known for its residential neighborhoods, educational institutions, and proximity to central Osaka.
-
B.
Hamamatsuchō
Hamamatsuchō is a business and transportation district in Tokyo known for its major train and monorail stations, office towers, and proximity to Tokyo Bay.
-
C.
Nishi-Tobecho
Nishi-Tobecho is a notable neighborhood within Nishi Ward in Yokohama, Japan, known as part of the city’s central urban area.
-
D.
Kagurazaka
Kagurazaka is a historic neighborhood in central Tokyo known for its narrow cobblestone streets, traditional ryotei restaurants, and blend of old geisha district charm with modern boutiques and cafes.
-
E.
Kitano-cho
Kitano-cho is a historic district in Kobe, Japan, known for its preserved Western-style residences built by foreign merchants in the late 19th and early 20th centuries.
- 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: Nagatacho Target entity description: Nagatacho is a central district in Tokyo, Japan, known as the political heart of the country and home to key government institutions such as the National Diet Building.
-
A.
Toyonaka
Toyonaka is a suburban city in Japan’s Kansai region known for its residential neighborhoods, educational institutions, and proximity to central Osaka.
-
B.
Hamamatsuchō
Hamamatsuchō is a business and transportation district in Tokyo known for its major train and monorail stations, office towers, and proximity to Tokyo Bay.
-
C.
Nishi-Tobecho
Nishi-Tobecho is a notable neighborhood within Nishi Ward in Yokohama, Japan, known as part of the city’s central urban area.
-
D.
Kagurazaka
Kagurazaka is a historic neighborhood in central Tokyo known for its narrow cobblestone streets, traditional ryotei restaurants, and blend of old geisha district charm with modern boutiques and cafes.
-
E.
Kitano-cho
Kitano-cho is a historic district in Kobe, Japan, known for its preserved Western-style residences built by foreign merchants in the late 19th and early 20th centuries.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
district
ⓘ
neighborhood ⓘ |
| adjacentTo |
Akasaka
ⓘ
Hanzomon area ⓘ Kasumigaseki ⓘ |
| associatedWith | Japanese national politics ⓘ |
| contains |
Cabinet Office of Japan
ⓘ
Komeito headquarters ⓘ
linked to:
Kōmeitō headquarters
Liberal Democratic Party headquarters ⓘ National Diet Building ⓘ Prime Minister’s Office ⓘ Prime Minister’s Official Residence ⓘ |
| country | Japan ⓘ |
| governedBy | Chiyoda City government ⓘ |
| hasBuildingType |
government buildings
ⓘ
office buildings ⓘ party headquarters ⓘ |
| hasEconomicActivity |
political services
ⓘ
public administration ⓘ |
| hasFeature |
concentration of political party offices
ⓘ
government-related office buildings ⓘ high security presence ⓘ |
| hasFunction | seat of Japan’s legislature vicinity ⓘ |
| hasLandmark |
National Diet Library main building vicinity
ⓘ
linked to:
National Diet Library of Japan
|
| hasNameOrigin | derived from former Nagata village area ⓘ |
| hasNearbyPark |
Hibiya Park vicinity
ⓘ
Imperial Palace outer gardens vicinity ⓘ
linked to:
Tokyo Imperial Palace grounds
|
| hasPostalCodeRange | 100-0014 ⓘ |
| hasRailwayStation |
Kokkai-gijidomae Station
NERFINISHED
ⓘ
Nagatacho Station NERFINISHED ⓘ |
| knownAs |
political center of Japan
ⓘ
political heart of Japan ⓘ |
| languageUsed | Japanese ⓘ |
| locatedIn |
Chiyoda, Tokyo
ⓘ
Honshu ⓘ Kanto region ⓘ
linked to:
Kantō region
Tokyo ⓘ Tokyo Metropolis ⓘ
linked to:
Tokyo Prefecture
|
| partOf |
Chiyoda ward
ⓘ
linked to:
Chiyoda
|
| partOfUrbanArea |
Greater Tokyo Area
ⓘ
linked to:
Tokyo metropolitan area
|
| servedByLine |
Tokyo Metro Chiyoda Line
ⓘ
Tokyo Metro Hanzomon Line ⓘ Tokyo Metro Marunouchi Line ⓘ Tokyo Metro Namboku Line ⓘ Tokyo Metro Yurakucho Line ⓘ
linked to:
Tokyo Metro Yurakuchō Line
|
| timezone | Japan Standard Time ⓘ |
| transportHubFor | government officials ⓘ |
| utcOffset | +09:00 ⓘ |
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: Nagatacho Description of subject: Nagatacho is a central district in Tokyo, Japan, known as the political heart of the country and home to key government institutions such as the National Diet Building.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Nagatacho