Ōkuma-machi
E930410
Ōkuma-machi is a town in Fukushima Prefecture, Japan, known for hosting part of the Fukushima Daiichi Nuclear Power Plant and being heavily affected by the 2011 nuclear disaster.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ōkuma-machi canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T9296266 — 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: Ōkuma-machi Context triple: [Ōkuma, Fukushima Prefecture, officialName, Ōkuma-machi]
-
A.
Shinanomachi
Shinanomachi is a district in Shinjuku, Tokyo, known for its residential neighborhoods, medical institutions, and proximity to central Tokyo areas like Yotsuya.
-
B.
Takehara-shi
Takehara-shi is a coastal city in Hiroshima Prefecture, Japan, known for its well-preserved historic townscape and traditional salt-making heritage.
-
C.
Yamamoto Town
Yamamoto Town is a coastal municipality in northeastern Japan known for agriculture and for being heavily affected by the 2011 Tōhoku earthquake and tsunami.
-
D.
Katsuragi-shi
Katsuragi-shi is a city located in Nara Prefecture in Japan, known for its historical sites and proximity to the Katsuragi mountain range.
-
E.
Kitano-cho
Kitano-cho is a historic district in Kobe, Japan, known for its preserved Western-style residences built by foreign merchants in the late 19th and early 20th centuries.
- 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: Ōkuma-machi Target entity description: Ōkuma-machi is a town in Fukushima Prefecture, Japan, known for hosting part of the Fukushima Daiichi Nuclear Power Plant and being heavily affected by the 2011 nuclear disaster.
-
A.
Shinanomachi
Shinanomachi is a district in Shinjuku, Tokyo, known for its residential neighborhoods, medical institutions, and proximity to central Tokyo areas like Yotsuya.
-
B.
Takehara-shi
Takehara-shi is a coastal city in Hiroshima Prefecture, Japan, known for its well-preserved historic townscape and traditional salt-making heritage.
-
C.
Yamamoto Town
Yamamoto Town is a coastal municipality in northeastern Japan known for agriculture and for being heavily affected by the 2011 Tōhoku earthquake and tsunami.
-
D.
Katsuragi-shi
Katsuragi-shi is a city located in Nara Prefecture in Japan, known for its historical sites and proximity to the Katsuragi mountain range.
-
E.
Kitano-cho
Kitano-cho is a historic district in Kobe, Japan, known for its preserved Western-style residences built by foreign merchants in the late 19th and early 20th centuries.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
municipality
ⓘ
town ⓘ |
| affectedBy |
2011 Tōhoku earthquake and tsunami
ⓘ
Fukushima Daiichi nuclear disaster ⓘ |
| country | Japan ⓘ |
| countrySubdivision | Fukushima Prefecture NERFINISHED ⓘ |
| disasterCategory | nuclear disaster–affected municipality ⓘ |
| disasterTypeExperienced |
earthquake
ⓘ
nuclear contamination ⓘ tsunami ⓘ |
| evacuationOrderedIn | 2011 ⓘ |
| evacuationReason | nuclear accident at Fukushima Daiichi ⓘ |
| evacuationStatusPost2011 | most residents evacuated for years ⓘ |
| evacuationZoneDesignation | difficult-to-return zone (post-2011) ⓘ |
| governingCountry | Japan ⓘ |
| hasClimate | humid temperate climate ⓘ |
| hasDisasterYear | 2011 ⓘ |
| hasJapaneseName | 大熊町 ⓘ |
| hasLongTermIssue |
population displacement
ⓘ
radioactive contamination ⓘ |
| hasNuclearFacility | Fukushima Daiichi Nuclear Power Plant ⓘ |
| hasPart |
Fukushima Daiichi Nuclear Power Plant site
ⓘ
linked to:
Fukushima Daiichi Nuclear Power Plant
|
| hasPrimaryIndustryBefore2011 |
agriculture
ⓘ
fishing ⓘ nuclear power–related employment ⓘ |
| knownFor |
being heavily affected by the 2011 Fukushima nuclear disaster
ⓘ
hosting part of Fukushima Daiichi Nuclear Power Plant ⓘ |
| locatedIn |
Fukushima Prefecture
NERFINISHED
ⓘ
Futaba District ⓘ Tōhoku region ⓘ
linked to:
Tohoku
northeastern Japan ⓘ |
| locatedNear | Pacific Ocean coast of Fukushima Prefecture ⓘ |
| locatedOn | Honshu ⓘ |
| municipalGovernmentType | town government ⓘ |
| nativeNameLanguage | ja ⓘ |
| partiallyReopenedForResidents | true ⓘ |
| prefectureCapitalDistanceApprox | about 60 km from Fukushima City ⓘ |
| radiationDecontaminationEfforts | conducted after 2011 disaster ⓘ |
| reconstructionEfforts | ongoing after Fukushima disaster ⓘ |
| region |
Tōhoku
ⓘ
linked to:
Tohoku
|
| reopeningBegan | 2019 ⓘ |
| romanization |
Okuma-machi
NERFINISHED
ⓘ
Ōkuma-machi NERFINISHED ⓘ |
| sharesPlantSiteWith | Futaba ⓘ |
| subdivisionName | Ōkuma ⓘ |
| subdivisionType | town ⓘ |
| 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: Ōkuma-machi Description of subject: Ōkuma-machi is a town in Fukushima Prefecture, Japan, known for hosting part of the Fukushima Daiichi Nuclear Power Plant and being heavily affected by the 2011 nuclear disaster.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.