Sendai Plain
E774243
The Sendai Plain is a broad coastal lowland in Japan’s Miyagi Prefecture, known for its extensive rice fields, dense urban development around Sendai City, and exposure to tsunami impacts from the Pacific Ocean.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sendai Plain canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T9007891 — 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: Sendai Plain Context triple: [Sendai Castle ruins, hasViewOf, Sendai Plain]
-
A.
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.
-
B.
Osaka Plain
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.
-
C.
Ishikari Plain
The Ishikari Plain is a broad, fertile lowland region in western Hokkaido, Japan, known for its extensive agricultural land and encompassing major cities such as Sapporo.
-
D.
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.
-
E.
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.
- 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: Sendai Plain Target entity description: The Sendai Plain is a broad coastal lowland in Japan’s Miyagi Prefecture, known for its extensive rice fields, dense urban development around Sendai City, and exposure to tsunami impacts from the Pacific Ocean.
-
A.
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.
-
B.
Osaka Plain
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.
-
C.
Ishikari Plain
The Ishikari Plain is a broad, fertile lowland region in western Hokkaido, Japan, known for its extensive agricultural land and encompassing major cities such as Sapporo.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
coastal plain
ⓘ
geographical region ⓘ |
| adjacentTo | Ōu Mountains NERFINISHED ⓘ |
| administrativeRegion | Sendai metropolitan area NERFINISHED ⓘ |
| affectedByEvent | 2011 Tōhoku earthquake and tsunami NERFINISHED ⓘ |
| country | Japan ⓘ |
| drainedByRiver |
Abukuma River
NERFINISHED
ⓘ
Nanakita River NERFINISHED ⓘ Natori River NERFINISHED ⓘ |
| geologicalOrigin | alluvial deposits ⓘ |
| hasAgriculturalProduct |
rice
ⓘ
vegetables ⓘ |
| hasClimate | humid temperate climate ⓘ |
| hasCoastlineFeature |
coastal dunes
ⓘ
sandy beaches ⓘ |
| hasDisasterMitigation |
coastal embankments
ⓘ
tsunami seawalls ⓘ |
| hasInfrastructure |
Sendai Airport
NERFINISHED
ⓘ
Sendai-Tōbu Road NERFINISHED ⓘ Tohoku Expressway NERFINISHED ⓘ Tōhoku Main Line NERFINISHED ⓘ |
| hasLandUse |
industrial areas
ⓘ
rice cultivation ⓘ urban development ⓘ |
| hasMajorCity |
Iwanuma
NERFINISHED
ⓘ
Natori NERFINISHED ⓘ Sendai NERFINISHED ⓘ Shiogama NERFINISHED ⓘ Tagajō NERFINISHED ⓘ |
| hasRisk |
coastal flooding
ⓘ
tsunami hazard ⓘ |
| hasSoilType | fertile alluvial soil ⓘ |
| knownFor |
dense urban development around Sendai City
ⓘ
extensive rice fields ⓘ tsunami exposure ⓘ |
| locatedIn | Miyagi Prefecture NERFINISHED ⓘ |
| locatedOnCoastOf |
Pacific Ocean
ⓘ
Sendai Bay NERFINISHED ⓘ |
| partOf | Tōhoku region NERFINISHED ⓘ |
| regionType | coastal lowland ⓘ |
| supportsEconomicActivity |
agriculture
ⓘ
logistics ⓘ manufacturing ⓘ |
| terrainType |
alluvial plain
ⓘ
lowland ⓘ |
| usedFor |
industrial zones
ⓘ
paddy fields ⓘ residential areas ⓘ |
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: Sendai Plain Description of subject: The Sendai Plain is a broad coastal lowland in Japan’s Miyagi Prefecture, known for its extensive rice fields, dense urban development around Sendai City, and exposure to tsunami impacts from the Pacific Ocean.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.