Sompo Japan Head Office Building
E301680
The Sompo Japan Head Office Building is a prominent skyscraper and corporate headquarters of the insurance company Sompo Japan, located in Tokyo’s Shinjuku business district.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Sompo Japan Head Office Building canonical | 2 |
| Sompo Japan Building | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2813874 — 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: Sompo Japan Head Office Building Context triple: [Shinjuku, Tokyo, Japan, contains, Sompo Japan Head Office Building]
-
A.
Bank of Japan Head Office Building
The Bank of Japan Head Office Building is the central headquarters of Japan’s central bank, known for its historic Western-style architecture in Tokyo’s financial district.
-
B.
Japan Society building
The Japan Society building is the New York City headquarters of the Japan Society, known for its modernist architecture and role as a cultural center promoting Japanese arts, education, and U.S.–Japan relations.
-
C.
Fuji Television Building
The Fuji Television Building is a landmark futuristic headquarters of Fuji TV in Tokyo, renowned for its striking modernist architecture featuring a prominent spherical observation deck.
-
D.
Dai-Ichi Seimei Building, Tokyo
The Dai-Ichi Seimei Building in Tokyo is a historic office building best known for serving as General Douglas MacArthur’s headquarters during the Allied occupation of Japan after World War II.
-
E.
Nihonbashi Mitsui Tower
Nihonbashi Mitsui Tower is a prominent high-rise office and commercial skyscraper in Tokyo’s Nihonbashi district, known for its modern design integrated with the historic Mitsui headquarters complex.
- 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: Sompo Japan Head Office Building Target entity description: The Sompo Japan Head Office Building is a prominent skyscraper and corporate headquarters of the insurance company Sompo Japan, located in Tokyo’s Shinjuku business district.
-
A.
Bank of Japan Head Office Building
The Bank of Japan Head Office Building is the central headquarters of Japan’s central bank, known for its historic Western-style architecture in Tokyo’s financial district.
-
B.
Japan Society building
The Japan Society building is the New York City headquarters of the Japan Society, known for its modernist architecture and role as a cultural center promoting Japanese arts, education, and U.S.–Japan relations.
-
C.
Fuji Television Building
The Fuji Television Building is a landmark futuristic headquarters of Fuji TV in Tokyo, renowned for its striking modernist architecture featuring a prominent spherical observation deck.
-
D.
Dai-Ichi Seimei Building, Tokyo
The Dai-Ichi Seimei Building in Tokyo is a historic office building best known for serving as General Douglas MacArthur’s headquarters during the Allied occupation of Japan after World War II.
-
E.
Nihonbashi Mitsui Tower
Nihonbashi Mitsui Tower is a prominent high-rise office and commercial skyscraper in Tokyo’s Nihonbashi district, known for its modern design integrated with the historic Mitsui headquarters complex.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
corporate headquarters
ⓘ
high-rise building ⓘ office building ⓘ skyscraper ⓘ |
| architecturalStyle | modernist architecture ⓘ |
| buildingType |
commercial
ⓘ
office ⓘ |
| city | Tokyo ⓘ |
| contains |
art exhibition spaces
ⓘ
conference facilities ⓘ office floors ⓘ |
| coordinates | 35.691°N 139.695°E ⓘ |
| country | Japan ⓘ |
| countrySubdivision | Tokyo Prefecture ⓘ |
| district |
Nishi-Shinjuku
ⓘ
linked to:
Nishi-Shinjuku skyscraper district
|
| floorCount | 43 ⓘ |
| formerName |
Sompo Japan Building
ⓘ
linked to:
Sompo Japan Head Office Building
Yasuda Kasai Kaijo Building ⓘ |
| hasArtMuseum | Sompo Museum of Art ⓘ |
| hasElevators | yes ⓘ |
| hasFunction |
corporate headquarters
ⓘ
office space ⓘ |
| height |
200 m
ⓘ
approximately 656 ft ⓘ |
| languageOfSignage |
English
ⓘ
Japanese ⓘ |
| locatedIn |
Honshu
ⓘ
Japan ⓘ Shinjuku business district ⓘ
linked to:
Shinjuku
Tokyo Metropolis ⓘ
linked to:
Tokyo Prefecture
|
| notableFor |
being one of the early skyscrapers in Nishi-Shinjuku
ⓘ
distinctive triangular profile ⓘ |
| occupant |
Sompo Holdings, Inc.
ⓘ
linked to:
Sompo Holdings
Sompo Japan Insurance Inc. ⓘ
linked to:
Sompo Holdings
|
| openingDate | 1976 ⓘ |
| owner |
Sompo Holdings, Inc.
ⓘ
linked to:
Sompo Holdings
Sompo Japan Insurance Inc. ⓘ
linked to:
Sompo Holdings
|
| partOf |
Nishi-Shinjuku skyscraper cluster
ⓘ
linked to:
Nishi-Shinjuku skyscraper district
|
| region | Kantō region ⓘ |
| roofType | flat roof ⓘ |
| status | completed ⓘ |
| structureMaterial |
reinforced concrete
ⓘ
steel ⓘ |
| use | insurance company headquarters ⓘ |
| ward | Shinjuku ⓘ |
| yearCompleted | 1976 ⓘ |
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: Sompo Japan Head Office Building Description of subject: The Sompo Japan Head Office Building is a prominent skyscraper and corporate headquarters of the insurance company Sompo Japan, located in Tokyo’s Shinjuku business district.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Sompo Japan Head Office Building