Dai-Ichi Seimei Building, Tokyo
E31569
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.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Dai-Ichi Life Insurance Building | 1 |
| Dai-Ichi Seimei Building, Tokyo canonical | 1 |
| Dai-ichi Seimei Hibiya Building | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T208621 — 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: Dai-Ichi Seimei Building, Tokyo Context triple: [General Headquarters of the Supreme Commander for the Allied Powers, locationHeadquarters, Dai-Ichi Seimei Building, Tokyo]
-
A.
Tsutenkaku Tower
Tsutenkaku Tower is a historic observation and entertainment tower in Osaka, Japan, known as a symbol of the city’s Shinsekai district.
-
B.
Supreme Court of Japan Building
The Supreme Court of Japan Building is the official courthouse complex in Tokyo that houses Japan’s highest judicial authority.
-
C.
Shibuya Hikarie
Shibuya Hikarie is a major high-rise commercial complex in Tokyo known for its shopping, dining, cultural facilities, and direct connection to Shibuya Station.
-
D.
Tokyo Imperial Palace
Tokyo Imperial Palace is the primary residence and administrative center of Japan’s imperial family, located in a large historic park area in central Tokyo.
-
E.
Yoyogi National Gymnasium
Yoyogi National Gymnasium is a landmark sports and event arena in Tokyo renowned for its distinctive suspension roof design by architect Kenzo Tange and its role as a major Olympic and cultural venue.
- 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: Dai-Ichi Seimei Building, Tokyo Target entity description: 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.
-
A.
Tsutenkaku Tower
Tsutenkaku Tower is a historic observation and entertainment tower in Osaka, Japan, known as a symbol of the city’s Shinsekai district.
-
B.
Supreme Court of Japan Building
The Supreme Court of Japan Building is the official courthouse complex in Tokyo that houses Japan’s highest judicial authority.
-
C.
Shibuya Hikarie
Shibuya Hikarie is a major high-rise commercial complex in Tokyo known for its shopping, dining, cultural facilities, and direct connection to Shibuya Station.
-
D.
Tokyo Imperial Palace
Tokyo Imperial Palace is the primary residence and administrative center of Japan’s imperial family, located in a large historic park area in central Tokyo.
-
E.
Yoyogi National Gymnasium
Yoyogi National Gymnasium is a landmark sports and event arena in Tokyo renowned for its distinctive suspension roof design by architect Kenzo Tange and its role as a major Olympic and cultural venue.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
commercial building
ⓘ
historic building ⓘ office building ⓘ |
| alsoKnownAs |
Dai-Ichi Seimei Building, Tokyo
ⓘ
surface form:
Dai-Ichi Life Insurance Building
Dai-Ichi Seimei Building, Tokyo ⓘ
surface form:
Dai-ichi Seimei Hibiya Building
|
| architecturalStyle | modernist ⓘ |
| associatedWithEvent | Allied occupation of Japan ⓘ |
| associatedWithPerson | Douglas MacArthur ⓘ |
| category |
Buildings and structures in Chiyoda, Tokyo
ⓘ
Headquarters of military operations ⓘ Office buildings in Tokyo ⓘ |
| city | Tokyo ⓘ |
| completionDate | 1938 ⓘ |
| constructionStart | 1930s ⓘ |
| country | Japan ⓘ |
| district | Chiyoda ⓘ |
| floorCount | 9 ⓘ |
| function | office use ⓘ |
| hasFeature |
central location in Marunouchi–Hibiya area
ⓘ
view of the Imperial Palace moat ⓘ |
| historicalRole | administrative center of Allied occupation of Japan ⓘ |
| locatedIn |
Japan
ⓘ
Tokyo ⓘ |
| locatedNear |
Tokyo Imperial Palace
ⓘ
surface form:
Imperial Palace
|
| material | reinforced concrete ⓘ |
| notableFor |
association with General Douglas MacArthur
ⓘ
role in post–World War II administration of Japan ⓘ |
| overlooks | Hibiya Park ⓘ |
| ownedBy | Dai-ichi Life Insurance Company ⓘ |
| postWarUse |
Allied military headquarters
ⓘ
Japanese corporate offices ⓘ |
| prefecture |
Tokyo Prefecture
ⓘ
surface form:
Tokyo Metropolis
|
| region | Kantō region ⓘ |
| survivedEvent |
Allied strategic bombing of Japan
ⓘ
surface form:
World War II bombings of Tokyo
|
| usedAs |
SCAP headquarters
ⓘ
headquarters of General Douglas MacArthur ⓘ headquarters of the Supreme Commander for the Allied Powers ⓘ |
| usedDuringPeriod | 1945–1952 Allied occupation of Japan ⓘ |
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: Dai-Ichi Seimei Building, Tokyo Description of subject: 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.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
General Headquarters of the Supreme Commander for the Allied Powers
→
locationHeadquarters
→
Dai-Ichi Seimei Building, Tokyo
ⓘ
this entity surface form:
Dai-ichi Seimei Hibiya Building
this entity surface form:
Dai-Ichi Life Insurance Building