Motoyasu River delta
E299391
The Motoyasu River delta is the riverine area in central Hiroshima, Japan, that encompasses the site of the Hiroshima Peace Memorial Park and the surrounding waterways.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Hiroshima Delta | 1 |
| Motoyasu River delta canonical | 1 |
| Ota River delta system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2794664 — 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: Motoyasu River delta Context triple: [Hiroshima Peace Memorial Park, locatedIn, Motoyasu River delta]
-
A.
Hirose River
The Hirose River is a prominent river in Miyagi Prefecture, Japan, known for flowing through the city of Sendai and for its scenic banks and clear waters.
-
B.
Osuga River
The Osuga River is a watercourse in Russia that flows through the Tver Oblast region, passing near the village of Pryamukhino.
-
C.
Naka River
Naka River is a river in Japan known for lending its name to the Imperial Japanese Navy light cruiser Naka.
-
D.
Takkaze River
The Takkaze River is a major river in the Horn of Africa that flows through the Ethiopian and Eritrean highlands, forming part of the border between the two countries before joining the Atbarah River.
-
E.
Hiran River
The Hiran River is a significant river in central India that flows through Madhya Pradesh and Gujarat, supporting local ecosystems and communities before joining the Narmada River.
- 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: Motoyasu River delta Target entity description: The Motoyasu River delta is the riverine area in central Hiroshima, Japan, that encompasses the site of the Hiroshima Peace Memorial Park and the surrounding waterways.
-
A.
Hirose River
The Hirose River is a prominent river in Miyagi Prefecture, Japan, known for flowing through the city of Sendai and for its scenic banks and clear waters.
-
B.
Osuga River
The Osuga River is a watercourse in Russia that flows through the Tver Oblast region, passing near the village of Pryamukhino.
-
C.
Naka River
Naka River is a river in Japan known for lending its name to the Imperial Japanese Navy light cruiser Naka.
-
D.
Takkaze River
The Takkaze River is a major river in the Horn of Africa that flows through the Ethiopian and Eritrean highlands, forming part of the border between the two countries before joining the Atbarah River.
-
E.
Hiran River
The Hiran River is a significant river in central India that flows through Madhya Pradesh and Gujarat, supporting local ecosystems and communities before joining the Narmada River.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
geographical feature
ⓘ
river delta ⓘ |
| adjacentTo |
Hondori district
ⓘ
Naka Ward, Hiroshima ⓘ
surface form:
Naka-ku, Hiroshima
|
| climate | humid subtropical climate zone ⓘ |
| contains |
A-Bomb Dome
ⓘ
surface form:
Atomic Bomb Dome
Cenotaph for the A-bomb Victims ⓘ Children’s Peace Monument ⓘ A-Bomb Dome ⓘ
surface form:
Hiroshima Peace Memorial
Hiroshima Peace Memorial Museum ⓘ Hiroshima Peace Memorial Park ⓘ |
| coordinateRegion | approximately 34.392°N 132.452°E ⓘ |
| country | Japan ⓘ |
| crossedBy |
Aioi Bridge
ⓘ
Motoyasu Bridge ⓘ Taira Bridge ⓘ |
| flowsInto | Seto Inland Sea ⓘ |
| governedBy |
Hiroshima
ⓘ
surface form:
City of Hiroshima
|
| hasFunction |
flood control
ⓘ
peace commemoration ⓘ tourism ⓘ urban recreation ⓘ |
| hasLandUse |
commemorative site
ⓘ
recreational area ⓘ urban parkland ⓘ |
| hasViewOf |
A-Bomb Dome
ⓘ
surface form:
Atomic Bomb Dome
Hiroshima Peace Memorial Museum ⓘ |
| hasWatercourse |
Enokawa River
ⓘ
surface form:
Enkō River
Hon River ⓘ Nihonbashi River ⓘ
surface form:
Kyōbashi River
|
| heritageStatus |
UNESCO World Heritage buffer boundary
ⓘ
surface form:
UNESCO World Heritage Site buffer area
|
| historicalEvent |
atomic bombing of Hiroshima
ⓘ
surface form:
atomic bombing of Hiroshima on 6 August 1945
|
| knownFor |
memorial landscape for atomic bomb victims
ⓘ
site of the 1945 atomic bombing of Hiroshima ⓘ |
| locatedIn |
Chūgoku region
ⓘ
Hiroshima ⓘ Hiroshima Prefecture NERFINISHED ⓘ Honshu ⓘ central Hiroshima ⓘ |
| mouthLocation | Hiroshima Bay ⓘ |
| near |
Hiroshima City Hall
ⓘ
Hiroshima Municipal Stadium ⓘ
surface form:
Hiroshima Municipal Stadium (old site)
|
| partOf |
Naka River
ⓘ
surface form:
Naka River system of Hiroshima
Motoyasu River delta self-linksurface differs ⓘ
surface form:
Ota River delta system
|
| regionType | riverine area ⓘ |
| river | Motoyasu River ⓘ |
| tourismAttraction | Hiroshima Peace Memorial Park ⓘ |
| urbanContext | central business district of Hiroshima ⓘ |
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: Motoyasu River delta Description of subject: The Motoyasu River delta is the riverine area in central Hiroshima, Japan, that encompasses the site of the Hiroshima Peace Memorial Park and the surrounding waterways.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ota River delta system