Osaka Plain
E664702
The Osaka Plain is a large, fertile lowland area in the Kansai region of Japan that forms the core of the Osaka metropolitan area and supports dense urban development and agriculture.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Osaka Plain canonical | 2 |
| Yamato Plain | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7417233 — 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: Osaka Plain Context triple: [Neyagawa, locatedInGeographicRegion, Osaka Plain]
-
A.
Kanto Plain
The Kanto Plain is Japan's largest and most populous lowland region, encompassing Tokyo and surrounding urban and agricultural areas on central Honshu.
-
B.
Sanuki Plain
The Sanuki Plain is a fertile lowland region in Kagawa Prefecture on Japan’s Shikoku Island, known for its agriculture and historic settlements.
-
C.
Nara Basin
The Nara Basin is a lowland plain in central Japan known as the historical heart of Nara Prefecture, containing many of Japan’s earliest capitals and cultural heritage sites.
-
D.
Kyoto Basin
The Kyoto Basin is a low-lying inland plain in central Honshu, Japan, that forms the geographic setting for the city of Kyoto and surrounding urban and agricultural areas.
-
E.
Shikoku Basin
Shikoku Basin is a back-arc basin in the Philippine Sea, located south of Japan and formed by seafloor spreading behind the Izu–Bonin–Mariana volcanic arc.
- 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: Osaka Plain Target entity description: The Osaka Plain is a large, fertile lowland area in the Kansai region of Japan that forms the core of the Osaka metropolitan area and supports dense urban development and agriculture.
-
A.
Kanto Plain
The Kanto Plain is Japan's largest and most populous lowland region, encompassing Tokyo and surrounding urban and agricultural areas on central Honshu.
-
B.
Sanuki Plain
The Sanuki Plain is a fertile lowland region in Kagawa Prefecture on Japan’s Shikoku Island, known for its agriculture and historic settlements.
-
C.
Nara Basin
The Nara Basin is a lowland plain in central Japan known as the historical heart of Nara Prefecture, containing many of Japan’s earliest capitals and cultural heritage sites.
-
D.
Kyoto Basin
The Kyoto Basin is a low-lying inland plain in central Honshu, Japan, that forms the geographic setting for the city of Kyoto and surrounding urban and agricultural areas.
-
E.
Shikoku Basin
Shikoku Basin is a back-arc basin in the Philippine Sea, located south of Japan and formed by seafloor spreading behind the Izu–Bonin–Mariana volcanic arc.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
geographical region
ⓘ
lowland ⓘ plain ⓘ |
| adjacentTo | Osaka Bay NERFINISHED ⓘ |
| borderedBy |
Hokusetsu Mountains
NERFINISHED
ⓘ
Ikoma Mountains NERFINISHED ⓘ Kongo Range NERFINISHED ⓘ Rokko Mountains NERFINISHED ⓘ |
| characterizedBy |
alluvial deposits
ⓘ
fertile soils ⓘ low elevation ⓘ |
| climate | humid subtropical climate ⓘ |
| contains |
Amagasaki City
NERFINISHED
ⓘ
Higashi-Osaka City NERFINISHED ⓘ Nishinomiya City NERFINISHED ⓘ Osaka City NERFINISHED ⓘ Sakai City NERFINISHED ⓘ Suita City NERFINISHED ⓘ Toyonaka City NERFINISHED ⓘ commercial districts ⓘ industrial zones ⓘ port facilities on Osaka Bay ⓘ residential areas ⓘ |
| coreOf | Osaka metropolitan area NERFINISHED ⓘ |
| country | Japan ⓘ |
| drainedBy |
Katsura River
NERFINISHED
ⓘ
Kizu River NERFINISHED ⓘ Uji River NERFINISHED ⓘ Yamato River NERFINISHED ⓘ Yodo River NERFINISHED ⓘ |
| hasInfrastructure |
dense railway network
ⓘ
expressways ⓘ urban express rail lines ⓘ |
| historicallyServedAs |
economic center of Kansai
ⓘ
transportation hub ⓘ |
| locatedIn |
Honshu
ⓘ
Kansai region ⓘ western Japan ⓘ |
| majorCrops |
fruits
ⓘ
rice ⓘ vegetables ⓘ |
| partlyIn |
Hyogo Prefecture
NERFINISHED
ⓘ
Nara Prefecture NERFINISHED ⓘ |
| partOf | Osaka Prefecture NERFINISHED ⓘ |
| supports |
agriculture
ⓘ
dense urban development ⓘ |
| vulnerableTo |
flooding
ⓘ
storm surges ⓘ |
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: Osaka Plain Description of subject: The Osaka Plain is a large, fertile lowland area in the Kansai region of Japan that forms the core of the Osaka metropolitan area and supports dense urban development and agriculture.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Neyagawa
this entity surface form:
Yamato Plain