Chiyoda, Tokyo
E851234
Chiyoda, Tokyo is a central special ward of Tokyo that serves as Japan’s political and administrative hub, housing the Imperial Palace, the National Diet, and numerous government and corporate headquarters.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Chiyoda, Tokyo canonical | 124 |
| Chiyoda City, Tokyo | 1 |
| Chiyoda ward, Tokyo | 1 |
| Tokyo’s government district | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9296337 — 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: Chiyoda, Tokyo Context triple: [Tokyo Electric Power Company, headquartersLocation, Chiyoda, Tokyo]
-
A.
Itabashi, Tokyo
Itabashi, Tokyo is one of Tokyo's 23 special wards, located in the northwestern part of the metropolis and known as a primarily residential and commercial area.
-
B.
Nagatachō, Tokyo
Nagatachō, Tokyo is a central district in Japan’s capital city that serves as the core of the national government, housing key institutions such as the National Diet and the Prime Minister’s office.
-
C.
Toshima, Tokyo
Toshima, Tokyo is a special ward in northwestern Tokyo known for its major commercial and entertainment hub Ikebukuro and its mix of residential, educational, and cultural institutions.
-
D.
Bunkyo, Tokyo
Bunkyo, Tokyo is a central special ward of Tokyo known for its educational institutions, cultural sites, and major sports venues such as the Tokyo Dome.
-
E.
Nakano, Tokyo
Nakano, Tokyo is a special ward in western Tokyo known for its dense residential neighborhoods, vibrant shopping streets, and pop culture hub around Nakano Broadway.
- 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: Chiyoda, Tokyo Target entity description: Chiyoda, Tokyo is a central special ward of Tokyo that serves as Japan’s political and administrative hub, housing the Imperial Palace, the National Diet, and numerous government and corporate headquarters.
-
A.
Itabashi, Tokyo
Itabashi, Tokyo is one of Tokyo's 23 special wards, located in the northwestern part of the metropolis and known as a primarily residential and commercial area.
-
B.
Nagatachō, Tokyo
Nagatachō, Tokyo is a central district in Japan’s capital city that serves as the core of the national government, housing key institutions such as the National Diet and the Prime Minister’s office.
-
C.
Toshima, Tokyo
Toshima, Tokyo is a special ward in northwestern Tokyo known for its major commercial and entertainment hub Ikebukuro and its mix of residential, educational, and cultural institutions.
-
D.
Bunkyo, Tokyo
Bunkyo, Tokyo is a central special ward of Tokyo known for its educational institutions, cultural sites, and major sports venues such as the Tokyo Dome.
-
E.
Nakano, Tokyo
Nakano, Tokyo is a special ward in western Tokyo known for its dense residential neighborhoods, vibrant shopping streets, and pop culture hub around Nakano Broadway.
- F. None of above. chosen
Statements (56)
| Predicate | Object |
|---|---|
| instanceOf |
administrative district
ⓘ
special ward of Tokyo ⓘ |
| administrativeCenterOf |
Government of Japan
ⓘ
Judiciary of Japan ⓘ National Diet of Japan ⓘ
linked to:
National Diet
|
| borderedBy |
Bunkyō, Tokyo
ⓘ
linked to:
Bunkyo, Tokyo
Chiyoda City waterways and moats ⓘ Chūō, Tokyo ⓘ Minato, Tokyo ⓘ
linked to:
Minato, Tokyo, Japan
Shinjuku, Tokyo ⓘ Taitō, Tokyo ⓘ
linked to:
Taitō, Tokyo, Japan
|
| capitalOf |
Japan (de facto, as seat of national government)
ⓘ
linked to:
Japan
|
| contains |
Akihabara district
ⓘ
linked to:
Akihabara
Chidorigafuchi moat area ⓘ Hibiya Park ⓘ Hibiya area ⓘ
linked to:
Hibiya district
Imperial Palace ⓘ Kanda district ⓘ Kasumigaseki government district ⓘ
linked to:
Kasumigaseki
Kitanomaru Park ⓘ Marunouchi business district ⓘ Nagatachō political district ⓘ
linked to:
Nagatachō district
National Diet Building ⓘ National Museum of Modern Art, Tokyo ⓘ Nijubashi Bridge ⓘ Nippon Budokan ⓘ Otemachi business district ⓘ
linked to:
Otemachi
Prime Minister’s Official Residence ⓘ Supreme Court of Japan ⓘ Tokyo Dome Hotel vicinity (border area with Bunkyo) ⓘ Tokyo International Forum (partly associated area) ⓘ
linked to:
Tokyo International Forum
Tokyo Metropolitan Government buildings (some offices) ⓘ
linked to:
Tokyo Metropolitan Government Building
Tokyo Station (Marunouchi side) ⓘ
linked to:
Tokyo Station
Yasukuni Shrine ⓘ Yurakucho commercial district ⓘ
linked to:
Yurakucho
|
| country | Japan ⓘ |
| hasMajorStation |
Akihabara Station
ⓘ
Hibiya Station ⓘ Kanda Station NERFINISHED ⓘ Kasumigaseki Station NERFINISHED ⓘ Nagatachō Station ⓘ Otemachi Station ⓘ Tokyo Station ⓘ Yurakucho Station ⓘ |
| hasNoDaylightSavingTime | true ⓘ |
| hasRole |
administrative center of Japan
ⓘ
major business district of Tokyo ⓘ political center of Japan ⓘ |
| language | Japanese ⓘ |
| locatedIn |
Honshu
ⓘ
Kantō region ⓘ Tokyo urban core ⓘ |
| partOf |
Tokyo Metropolis
ⓘ
linked to:
Tokyo Metropolis, Japan
|
| timeZone | Japan Standard Time ⓘ |
| UTCOffset | +9 ⓘ |
| writingSystem | Japanese writing system ⓘ |
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: Chiyoda, Tokyo Description of subject: Chiyoda, Tokyo is a central special ward of Tokyo that serves as Japan’s political and administrative hub, housing the Imperial Palace, the National Diet, and numerous government and corporate headquarters.
Referenced by (127)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Asahi Shimbun Company (Tokyo headquarters, in nearby Chiyoda/Minato border)
subject linked to:
Science Museum
subject linked to:
CAA
subject linked to:
CIRO
subject linked to:
Nagatachō district
subject linked to:
MOF
subject linked to:
MIC