East Japan
E935204
East Japan refers to the eastern region of Japan, commonly associated with the service area of East Japan Railway Company (JR East) and encompassing major areas such as the Kanto and Tohoku regions.
All labels observed (4)
| Label | Occurrences |
|---|---|
| East Japan canonical | 8 |
| eastern Japan | 8 |
| Eastern Japan | 1 |
| Northern Honshu | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11406198 — 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: East Japan Context triple: [Midori no Madoguchi, serviceArea, East Japan]
-
A.
Northern Japan
Northern Japan is the geographically and climatically cooler northern region of Japan, encompassing areas such as Hokkaido and known for its snowy winters, hot springs, and rugged natural landscapes.
-
B.
Honshu–Shikoku area
The Honshu–Shikoku area is a key region of Japan encompassing the strait and surrounding zones between the main islands of Honshu and Shikoku, linked by major bridge and transportation networks.
-
C.
Kantō region
The Kantō region is a major geographical and economic area of eastern Honshu, Japan, encompassing Tokyo and several surrounding prefectures and serving as the country’s political and population center.
-
D.
Hokuriku region
The Hokuriku region is a coastal area in northwestern Honshu, Japan, known for its heavy snowfall, Sea of Japan shoreline, and historic castle and hot spring towns.
-
E.
Chūbu region
The Chūbu region is a central area of Japan on Honshu Island, known for encompassing the Japanese Alps and including major prefectures such as Aichi, Nagano, and Shizuoka.
- 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: East Japan Target entity description: East Japan refers to the eastern region of Japan, commonly associated with the service area of East Japan Railway Company (JR East) and encompassing major areas such as the Kanto and Tohoku regions.
-
A.
Northern Japan
Northern Japan is the geographically and climatically cooler northern region of Japan, encompassing areas such as Hokkaido and known for its snowy winters, hot springs, and rugged natural landscapes.
-
B.
Honshu–Shikoku area
The Honshu–Shikoku area is a key region of Japan encompassing the strait and surrounding zones between the main islands of Honshu and Shikoku, linked by major bridge and transportation networks.
-
C.
Kantō region
The Kantō region is a major geographical and economic area of eastern Honshu, Japan, encompassing Tokyo and several surrounding prefectures and serving as the country’s political and population center.
-
D.
Hokuriku region
The Hokuriku region is a coastal area in northwestern Honshu, Japan, known for its heavy snowfall, Sea of Japan shoreline, and historic castle and hot spring towns.
-
E.
Chūbu region
The Chūbu region is a central area of Japan on Honshu Island, known for encompassing the Japanese Alps and including major prefectures such as Aichi, Nagano, and Shizuoka.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | geographical region ⓘ |
| associatedWith | East Japan Railway Company NERFINISHED ⓘ |
| borderedBy |
Pacific Ocean
ⓘ
Sea of Japan NERFINISHED ⓘ |
| climateType |
humid continental (northern and inland parts)
ⓘ
humid subtropical (southern parts) ⓘ |
| containsSubregion |
Kanto plain
NERFINISHED
ⓘ
Niigata plain NERFINISHED ⓘ Sanriku coast NERFINISHED ⓘ Tohoku mountains NERFINISHED ⓘ |
| country | Japan ⓘ |
| hasAirportHub |
Haneda Airport
NERFINISHED
ⓘ
Narita International Airport NERFINISHED ⓘ Niigata Airport NERFINISHED ⓘ Sendai Airport NERFINISHED ⓘ |
| hasDialect |
Kanto dialects
ⓘ
Tohoku dialects ⓘ |
| hasEconomicCenter | Greater Tokyo Area NERFINISHED ⓘ |
| hasTransportOperator | East Japan Railway Company NERFINISHED ⓘ |
| includesRegion |
Kanto region
NERFINISHED
ⓘ
Tohoku region NERFINISHED ⓘ parts of Chubu region ⓘ parts of Hokkaido region ⓘ |
| language | Japanese ⓘ |
| locatedIn | Japan ⓘ |
| majorCity |
Niigata
NERFINISHED
ⓘ
Sapporo NERFINISHED ⓘ Sendai NERFINISHED ⓘ Tokyo NERFINISHED ⓘ Yokohama NERFINISHED ⓘ |
| partOf | Honshu NERFINISHED ⓘ |
| railNetworkCenter |
Shinjuku Station
NERFINISHED
ⓘ
Tokyo Station NERFINISHED ⓘ Ueno Station NERFINISHED ⓘ |
| railwayBrand | JR East NERFINISHED ⓘ |
| servedBy |
Akita Shinkansen
NERFINISHED
ⓘ
Chuo Main Line NERFINISHED ⓘ Hokuriku Shinkansen NERFINISHED ⓘ Joban Line NERFINISHED ⓘ Joetsu Shinkansen NERFINISHED ⓘ Sobu Main Line NERFINISHED ⓘ Tohoku Shinkansen NERFINISHED ⓘ Tokaido Main Line (JR East section) NERFINISHED ⓘ Yamagata Shinkansen NERFINISHED ⓘ |
| shortName | JR East service area ⓘ |
| 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: East Japan Description of subject: East Japan refers to the eastern region of Japan, commonly associated with the service area of East Japan Railway Company (JR East) and encompassing major areas such as the Kanto and Tohoku regions.
Referenced by (18)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Northern Honshu
this entity surface form:
eastern Japan
subject surface form:
College of Economics, Yokohama National University
subject surface form:
Graduate School of Medicine, Yokohama City University
subject surface form:
School of Economics and Business Administration, Yokohama City University
this entity surface form:
eastern Japan
subject surface form:
College of Education, Yokohama National University
subject surface form:
Eastern Conference (bj league)
this entity surface form:
eastern Japan
this entity surface form:
Eastern Japan
this entity surface form:
eastern Japan
this entity surface form:
eastern Japan