Isumi, Chiba
E909773
Isumi, Chiba is a coastal city in Japan’s Chiba Prefecture known for its rural landscapes, fishing industry, and scenic Pacific shoreline on the Boso Peninsula.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Isumi, Chiba canonical | 3 |
| Isumi (Chiba Prefecture) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11024869 — 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: Isumi, Chiba Context triple: [Boso Peninsula, locatedInMunicipality, Isumi, Chiba]
-
A.
Kimitsu, Chiba
Kimitsu, Chiba is a coastal city in Japan’s Chiba Prefecture known for its mix of industrial facilities, rural landscapes, and access to the natural scenery of the Boso Peninsula.
-
B.
Shibayama, Chiba
Shibayama, Chiba is a coastal town in Chiba Prefecture, Japan, known for its proximity to the long sandy stretch of Kujūkuri Beach along the Pacific Ocean.
-
C.
Shirako, Chiba
Shirako, Chiba is a coastal town in Chiba Prefecture, Japan, known for its seaside resorts, surfing spots, and access to the long sandy stretch of Kujūkuri Beach.
-
D.
Tateyama, Chiba
Tateyama, Chiba is a coastal city at the southern tip of Japan’s Bōsō Peninsula known for its mild climate, beaches, and views of Tokyo Bay.
-
E.
Kujūkuri, Chiba
Kujūkuri, Chiba is a coastal town in Chiba Prefecture, Japan, known for its long sandy shoreline and fishing industry along the Pacific Ocean.
- 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: Isumi, Chiba Target entity description: Isumi, Chiba is a coastal city in Japan’s Chiba Prefecture known for its rural landscapes, fishing industry, and scenic Pacific shoreline on the Boso Peninsula.
-
A.
Kimitsu, Chiba
Kimitsu, Chiba is a coastal city in Japan’s Chiba Prefecture known for its mix of industrial facilities, rural landscapes, and access to the natural scenery of the Boso Peninsula.
-
B.
Shibayama, Chiba
Shibayama, Chiba is a coastal town in Chiba Prefecture, Japan, known for its proximity to the long sandy stretch of Kujūkuri Beach along the Pacific Ocean.
-
C.
Shirako, Chiba
Shirako, Chiba is a coastal town in Chiba Prefecture, Japan, known for its seaside resorts, surfing spots, and access to the long sandy stretch of Kujūkuri Beach.
-
D.
Tateyama, Chiba
Tateyama, Chiba is a coastal city at the southern tip of Japan’s Bōsō Peninsula known for its mild climate, beaches, and views of Tokyo Bay.
-
E.
Kujūkuri, Chiba
Kujūkuri, Chiba is a coastal town in Chiba Prefecture, Japan, known for its long sandy shoreline and fishing industry along the Pacific Ocean.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
city
ⓘ
municipality ⓘ |
| administrativeDivisionOf | Isumi District (former) ⓘ |
| climate | temperate coastal climate ⓘ |
| coastlineType | Pacific coastline ⓘ |
| country | Japan ⓘ |
| geographyFeature |
coastal plains
ⓘ
rural countryside ⓘ |
| governedBy | Isumi city government ⓘ |
| hasIndustry |
coastal tourism
ⓘ
seafood processing ⓘ |
| hasPort | fishing ports ⓘ |
| knownFor |
fishing industry
ⓘ
rural landscapes ⓘ scenic shoreline ⓘ |
| landUse |
farmland
ⓘ
fishing harbors ⓘ |
| language | Japanese ⓘ |
| locatedIn |
Chiba Prefecture
NERFINISHED
ⓘ
Honshū ⓘ
linked to:
Honshu
Kantō region ⓘ |
| locatedOn |
Bōsō Peninsula
ⓘ
Pacific Ocean ⓘ |
| partOf | eastern Chiba Prefecture ⓘ |
| primaryEconomicActivity |
agriculture
ⓘ
fishing ⓘ |
| tourismAttractionType |
beaches
ⓘ
scenic coastal views ⓘ |
| transportation |
served by local railways
ⓘ
served by regional roads ⓘ |
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: Isumi, Chiba Description of subject: Isumi, Chiba is a coastal city in Japan’s Chiba Prefecture known for its rural landscapes, fishing industry, and scenic Pacific shoreline on the Boso Peninsula.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Isumi, Chiba