Kasumigaseki, Chiyoda, Tokyo
E132545
Kasumigaseki in Chiyoda, Tokyo is a central government district known for housing numerous Japanese ministries and key national administrative agencies.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Kasumigaseki, Chiyoda, Tokyo canonical | 11 |
| Kasumigaseki, Chiyoda, Tokyo, Japan | 9 |
How this entity was disambiguated
This entity first appeared as the object of triple T1081402 — 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: Kasumigaseki, Chiyoda, Tokyo Context triple: [Financial Services Agency of Japan, headquartersLocation, Kasumigaseki, Chiyoda, Tokyo]
-
A.
Hayabusachō, Chiyoda, Tokyo
Hayabusachō, Chiyoda, Tokyo is a central Tokyo district known for housing key national institutions, including Japan’s Supreme Court.
-
B.
Chiyoda, Tokyo, Japan
Chiyoda is a central special ward of Tokyo that serves as Japan’s political and administrative heart, housing the Imperial Palace, the National Diet, and many government institutions.
-
C.
Nagatachō, Tokyo, Japan
Nagatachō, Tokyo, Japan is the political center of the country, housing key national government institutions such as the National Diet and the Prime Minister’s official offices.
-
D.
Bunkyō, Tokyo, Japan
Bunkyō, Tokyo, Japan is a central Tokyo ward known for its educational and cultural institutions, historic temples, and residential neighborhoods, including the main campus of the University of Tokyo.
-
E.
Setagaya, Tokyo, Japan
Setagaya is a large residential ward in western Tokyo known for its affluent neighborhoods, family-friendly atmosphere, and numerous parks and temples.
- 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: Kasumigaseki, Chiyoda, Tokyo Target entity description: Kasumigaseki in Chiyoda, Tokyo is a central government district known for housing numerous Japanese ministries and key national administrative agencies.
-
A.
Hayabusachō, Chiyoda, Tokyo
Hayabusachō, Chiyoda, Tokyo is a central Tokyo district known for housing key national institutions, including Japan’s Supreme Court.
-
B.
Chiyoda, Tokyo, Japan
Chiyoda is a central special ward of Tokyo that serves as Japan’s political and administrative heart, housing the Imperial Palace, the National Diet, and many government institutions.
-
C.
Nagatachō, Tokyo, Japan
Nagatachō, Tokyo, Japan is the political center of the country, housing key national government institutions such as the National Diet and the Prime Minister’s official offices.
-
D.
Bunkyō, Tokyo, Japan
Bunkyō, Tokyo, Japan is a central Tokyo ward known for its educational and cultural institutions, historic temples, and residential neighborhoods, including the main campus of the University of Tokyo.
-
E.
Setagaya, Tokyo, Japan
Setagaya is a large residential ward in western Tokyo known for its affluent neighborhoods, family-friendly atmosphere, and numerous parks and temples.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
district
ⓘ
government district ⓘ |
| adjacentTo |
Hibiya, Chiyoda, Tokyo
ⓘ
Nagatachō, Tokyo, Japan ⓘ
surface form:
Nagatachō, Chiyoda, Tokyo
Minato, Tokyo, Japan ⓘ
surface form:
Toranomon, Minato, Tokyo
|
| country | Japan ⓘ |
| governedBy | Chiyoda City government ⓘ |
| hasAgency |
Board of Audit of Japan
ⓘ
Financial Services Agency of Japan ⓘ
surface form:
Financial Services Agency (Japan)
Japan Fair Trade Commission ⓘ Japan Transport Safety Board ⓘ National Police Agency of Japan ⓘ
surface form:
National Police Agency (Japan)
Public Security Intelligence Agency of Japan ⓘ
surface form:
Public Security Intelligence Agency (Japan)
|
| hasFunction |
center of Japanese bureaucracy
ⓘ
seat of many national government ministries ⓘ |
| hasLandmarkBuilding |
Central Government Building No. 1
ⓘ
Central Government Building No. 1 ⓘ
surface form:
Central Government Building No. 2
Central Government Building No. 3 ⓘ Kasumigaseki Building ⓘ Ministry of Finance main building ⓘ Ministry of Foreign Affairs main building ⓘ |
| hasMinistry |
Cabinet Office of Japan
ⓘ
Ministry of Education of Japan ⓘ
surface form:
Ministry of Education, Culture, Sports, Science and Technology (Japan)
Ministry of Finance (Japan) ⓘ Ministry of Foreign Affairs of Japan ⓘ
surface form:
Ministry of Foreign Affairs (Japan)
Ministry of Health, Labour and Welfare of Japan ⓘ
surface form:
Ministry of Health, Labour and Welfare (Japan)
Ministry of Justice of Japan ⓘ
surface form:
Ministry of Justice (Japan)
Ministry of Land, Infrastructure, Transport and Tourism ⓘ
surface form:
Ministry of Land, Infrastructure, Transport and Tourism (Japan)
Ministry of the Environment of Japan ⓘ
surface form:
Ministry of the Environment (Japan)
Prime Minister's Office of Japan ⓘ
surface form:
Prime Minister’s Office of Japan
|
| hasPostalCode | 100-0013 ⓘ |
| knownFor |
Japanese national ministries
ⓘ
central government offices of Japan ⓘ key national administrative agencies ⓘ |
| languageUsed | Japanese ⓘ |
| locatedIn |
Chiyoda, Tokyo, Japan
ⓘ
surface form:
Chiyoda, Tokyo
Honshu ⓘ Japan ⓘ Kantō region ⓘ Tokyo ⓘ Tokyo metropolitan area ⓘ
surface form:
Tokyo Metropolis
|
| partOf |
Chiyoda
ⓘ
surface form:
Chiyoda ward
|
| role | administrative center of the Government of Japan ⓘ |
| servedByLine |
Tokyo Metro Chiyoda Line
ⓘ
Tokyo Metro Hibiya Line ⓘ Tokyo Metro Marunouchi Line ⓘ |
| servedByStation | Kasumigaseki Station NERFINISHED ⓘ |
| timezone | Japan Standard Time ⓘ |
| 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: Kasumigaseki, Chiyoda, Tokyo Description of subject: Kasumigaseki in Chiyoda, Tokyo is a central government district known for housing numerous Japanese ministries and key national administrative agencies.
Referenced by (20)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Kasumigaseki, Chiyoda, Tokyo, Japan
this entity surface form:
Kasumigaseki, Chiyoda, Tokyo, Japan
Ministry of Internal Affairs and Communications of Japan
→
headquartersLocation
→
Kasumigaseki, Chiyoda, Tokyo
ⓘ
this entity surface form:
Kasumigaseki, Chiyoda, Tokyo, Japan
subject surface form:
Economic Affairs Bureau (Japan Ministry of Foreign Affairs)
subject surface form:
Minister’s Secretariat (Japan Ministry of Foreign Affairs)
this entity surface form:
Kasumigaseki, Chiyoda, Tokyo, Japan
this entity surface form:
Kasumigaseki, Chiyoda, Tokyo, Japan
this entity surface form:
Kasumigaseki, Chiyoda, Tokyo, Japan
this entity surface form:
Kasumigaseki, Chiyoda, Tokyo, Japan
Ministry of Land, Infrastructure, Transport and Tourism
→
headquartersLocation
→
Kasumigaseki, Chiyoda, Tokyo
ⓘ
this entity surface form:
Kasumigaseki, Chiyoda, Tokyo, Japan
subject surface form:
Tokyo Metropolitan Police Department
subject surface form:
Consumer Affairs Agency (Japan)
this entity surface form:
Kasumigaseki, Chiyoda, Tokyo, Japan