Kasumigaseki Building
E558579
Kasumigaseki Building is one of Tokyo’s earliest and most iconic high-rise office skyscrapers, symbolizing Japan’s postwar modernization.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Kasumigaseki Building canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5957174 — 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 Building Context triple: [Kasumigaseki, Chiyoda, Tokyo, hasLandmarkBuilding, Kasumigaseki Building]
-
A.
Imperial Household Agency Building
The Imperial Household Agency Building is the government office complex in Tokyo that serves as the administrative headquarters for Japan’s Imperial Household Agency, which manages affairs related to the Imperial Family and the Imperial Palace.
-
B.
Akasaka Palace
Akasaka Palace is a former imperial residence in Tokyo that now serves as Japan’s state guest house for hosting visiting dignitaries and official events.
-
C.
Hachiōji City Hall
Hachiōji City Hall is the main municipal government building and administrative center serving the city of Hachiōji in Tokyo, Japan.
-
D.
Nagoya City Hall
Nagoya City Hall is the central municipal government building and administrative headquarters of the city of Nagoya, Japan.
-
E.
Tokyo Metropolitan Government Building
The Tokyo Metropolitan Government Building is a landmark twin-tower skyscraper in Shinjuku, Tokyo, known for housing the city’s government offices and offering public observation decks with panoramic views.
- 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 Building Target entity description: Kasumigaseki Building is one of Tokyo’s earliest and most iconic high-rise office skyscrapers, symbolizing Japan’s postwar modernization.
-
A.
Imperial Household Agency Building
The Imperial Household Agency Building is the government office complex in Tokyo that serves as the administrative headquarters for Japan’s Imperial Household Agency, which manages affairs related to the Imperial Family and the Imperial Palace.
-
B.
Akasaka Palace
Akasaka Palace is a former imperial residence in Tokyo that now serves as Japan’s state guest house for hosting visiting dignitaries and official events.
-
C.
Hachiōji City Hall
Hachiōji City Hall is the main municipal government building and administrative center serving the city of Hachiōji in Tokyo, Japan.
-
D.
Nagoya City Hall
Nagoya City Hall is the central municipal government building and administrative headquarters of the city of Nagoya, Japan.
-
E.
Tokyo Metropolitan Government Building
The Tokyo Metropolitan Government Building is a landmark twin-tower skyscraper in Shinjuku, Tokyo, known for housing the city’s government offices and offering public observation decks with panoramic views.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf | skyscraper ⓘ |
| aboveGroundFloors | 36 ⓘ |
| address | 3-2 Kasumigaseki, Chiyoda-ku, Tokyo, Japan ⓘ |
| architect |
Nikken Sekkei
ⓘ
Yoshikazu Uchida ⓘ |
| architecturalStyle | modernist architecture ⓘ |
| belowGroundFloors | 3 ⓘ |
| city | Tokyo ⓘ |
| continent | Asia ⓘ |
| country | Japan ⓘ |
| developer | Mitsui Fudosan ⓘ |
| district | Kasumigaseki ⓘ |
| elevatorCount | 30 ⓘ |
| floorCount | 36 ⓘ |
| hasFeature |
central core design
ⓘ
curtain wall façade ⓘ seismic-resistant structural design ⓘ |
| hasTenantType |
corporate offices
ⓘ
government-related organizations ⓘ |
| height |
147 m
ⓘ
approximately 482 ft ⓘ |
| languageOfName | Japanese ⓘ |
| location |
Kasumigaseki, Chiyoda, Tokyo, Japan
ⓘ
linked to:
Kasumigaseki, Chiyoda, Tokyo
|
| mainContractor | Taisei Corporation ⓘ |
| material |
reinforced concrete
ⓘ
steel frame ⓘ |
| nativeName | 霞が関ビルディング ⓘ |
| nativeNameLanguage | ja ⓘ |
| near |
Government ministries district in Kasumigaseki
ⓘ
Hibiya Park ⓘ |
| notableFeature | first building in Japan to exceed 100 meters in height under new building regulations ⓘ |
| openingDate | 1968-04-12 ⓘ |
| owner | Mitsui Fudosan ⓘ |
| partOf |
Tokyo skyline
ⓘ
linked to:
Tokyo skyscrapers
|
| roofType | flat roof ⓘ |
| significance |
landmark of Tokyo’s postwar modernization
ⓘ
one of the first modern high-rise office buildings in Japan ⓘ symbol of Japan’s postwar economic growth ⓘ |
| startDate | 1965 ⓘ |
| status | completed ⓘ |
| structuralEngineer | Nikken Sekkei ⓘ |
| use |
commercial facilities
ⓘ
office space ⓘ |
| ward | Chiyoda ⓘ |
| yearCompleted | 1968 ⓘ |
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 Building Description of subject: Kasumigaseki Building is one of Tokyo’s earliest and most iconic high-rise office skyscrapers, symbolizing Japan’s postwar modernization.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.