Ōta, Tokyo
E282024
Ōta, Tokyo is a large ward in southern Tokyo known for its mix of residential and industrial areas and for hosting Haneda Airport, one of Japan’s major international gateways.
All labels observed (8)
| Label | Occurrences |
|---|---|
| Ōta, Tokyo canonical | 8 |
| Ota, Tokyo | 2 |
| Ota, Tokyo, Japan | 2 |
| Ōta, Tokyo, Japan | 2 |
| Kamata, Ōta, Tokyo | 1 |
| Magome, Ōta, Tokyo | 1 |
| Ota-ku, Tokyo | 1 |
| Ōta, Tokyo and Kawasaki, Kanagawa | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1640702 — 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: Ōta, Tokyo Context triple: [Haneda Airport, locatedIn, Ōta, Tokyo]
-
A.
Nerima, Tokyo
Nerima, Tokyo is a residential special ward in northwestern Tokyo known for its suburban character, parks, and role as a hub for anime production studios.
-
B.
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.
-
C.
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.
-
D.
Arakawa, Tokyo
Arakawa, Tokyo is a special ward in northeastern Tokyo known for its mix of traditional shitamachi neighborhoods, residential areas, and industrial zones.
-
E.
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.
- 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: Ōta, Tokyo Target entity description: Ōta, Tokyo is a large ward in southern Tokyo known for its mix of residential and industrial areas and for hosting Haneda Airport, one of Japan’s major international gateways.
-
A.
Nerima, Tokyo
Nerima, Tokyo is a residential special ward in northwestern Tokyo known for its suburban character, parks, and role as a hub for anime production studios.
-
B.
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.
-
C.
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.
-
D.
Arakawa, Tokyo
Arakawa, Tokyo is a special ward in northeastern Tokyo known for its mix of traditional shitamachi neighborhoods, residential areas, and industrial zones.
-
E.
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.
- F. None of above. chosen
Statements (60)
| Predicate | Object |
|---|---|
| instanceOf |
administrative district
ⓘ
special ward of Tokyo ⓘ |
| borderedBy |
Kawasaki, Kanagawa
ⓘ
Meguro, Tokyo, Japan ⓘ
surface form:
Meguro, Tokyo
Setagaya, Tokyo ⓘ Shinagawa, Tokyo ⓘ Tokyo Bay ⓘ |
| contains |
Anamori-inari Station
NERFINISHED
ⓘ
Den-en-chōfu ⓘ Den-en-chōfu Station NERFINISHED ⓘ Haneda Airport ⓘ
surface form:
Haneda
Haneda Airport ⓘ Haneda Airport Terminal 1 Station ⓘ Haneda Airport Terminal 2 Station ⓘ Haneda Airport Terminal 3 Station ⓘ Heiwajima Station NERFINISHED ⓘ Ikegami ⓘ Ikegami Honmon-ji ⓘ Ikegami Station NERFINISHED ⓘ Kamata ⓘ Kamata Station NERFINISHED ⓘ Keikyū Kamata Station NERFINISHED ⓘ Magome ⓘ Omori-kaigan ⓘ Rokugodote Station NERFINISHED ⓘ Ryūtsū Center Station NERFINISHED ⓘ Senzokuike Park ⓘ Tamagawa River waterfront ⓘ Tenkūbashi Station NERFINISHED ⓘ Haneda Airport ⓘ
surface form:
Tokyo International Airport
Zoshiki Station NERFINISHED ⓘ Ōmori ⓘ Ōmori Station NERFINISHED ⓘ |
| country | Japan ⓘ |
| formedByMergerOf |
Ōmori Ward
ⓘ
surface form:
Kamata Ward
Ōmori Ward ⓘ |
| governedBy | Ōta City Office ⓘ |
| hasAirport |
Haneda Airport
ⓘ
Haneda Airport ⓘ
surface form:
Tokyo International Airport
|
| hasArea | largest area among Tokyo’s special wards ⓘ |
| hasFunction |
international air gateway to Tokyo
ⓘ
major transportation hub ⓘ |
| hasIndustry |
light industry
ⓘ
logistics ⓘ manufacturing ⓘ |
| hasJapaneseName | 大田区 ⓘ |
| hasMayor | mayor of Ōta, Tokyo ⓘ |
| hasOfficialName | Ōta City ⓘ |
| hasSettlementType | special ward ⓘ |
| hasStatus | special ward of Tokyo since 1947 ⓘ |
| knownFor |
coastal location on Tokyo Bay
ⓘ
hosting Haneda Airport ⓘ mix of residential and industrial areas ⓘ |
| languageUsed | Japanese ⓘ |
| locatedIn |
Honshu
ⓘ
surface form:
Honshū
Kantō region ⓘ southern Tokyo ⓘ |
| partOf |
Tokyo Prefecture
ⓘ
surface form:
Tokyo Metropolis
|
| 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: Ōta, Tokyo Description of subject: Ōta, Tokyo is a large ward in southern Tokyo known for its mix of residential and industrial areas and for hosting Haneda Airport, one of Japan’s major international gateways.
Referenced by (18)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ota, Tokyo, Japan
this entity surface form:
Ota, Tokyo, Japan
subject surface form:
Ōta, Tokyo
this entity surface form:
Kamata, Ōta, Tokyo
subject surface form:
Ōta, Tokyo
this entity surface form:
Magome, Ōta, Tokyo
this entity surface form:
Ota, Tokyo
subject surface form:
Terminal 3 (Haneda Airport)
this entity surface form:
Ōta, Tokyo, Japan
subject surface form:
Terminal 1 (Haneda Airport)
subject surface form:
Terminal 2 (Haneda Airport)
this entity surface form:
Ōta, Tokyo, Japan
this entity surface form:
Ota-ku, Tokyo
this entity surface form:
Ōta, Tokyo and Kawasaki, Kanagawa