Shigenobu River
E793991
Shigenobu River is a major river in Ehime Prefecture on Japan’s Shikoku Island, flowing through the city of Matsuyama and playing an important role in its landscape and water supply.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Shigenobu River canonical | 3 |
| Ishite River | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8534082 — 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: Shigenobu River Context triple: [Matsuyama, hasRiver, Shigenobu River]
-
A.
Motoyasu River
The Motoyasu River is a river flowing through central Hiroshima, Japan, known for running beside the Atomic Bomb Dome and Hiroshima Peace Memorial Park.
-
B.
Shingashi River
The Shingashi River is a scenic waterway in Saitama Prefecture, Japan, known for flowing through the historic castle town of Kawagoe and its popular cherry blossom viewing spots.
-
C.
Yamakuni River
The Yamakuni River is a significant river in Kyushu, Japan, flowing through Ōita Prefecture and influencing the development and landscape of cities such as Nakatsu.
-
D.
Shinmachi River
The Shinmachi River is a central waterway flowing through Tokushima City in Japan, known for its riverside promenades, sightseeing cruises, and role in local festivals.
-
E.
Osuga River
The Osuga River is a watercourse in Russia that flows through the Tver Oblast region, passing near the village of Pryamukhino.
- 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: Shigenobu River Target entity description: Shigenobu River is a major river in Ehime Prefecture on Japan’s Shikoku Island, flowing through the city of Matsuyama and playing an important role in its landscape and water supply.
-
A.
Motoyasu River
The Motoyasu River is a river flowing through central Hiroshima, Japan, known for running beside the Atomic Bomb Dome and Hiroshima Peace Memorial Park.
-
B.
Shingashi River
The Shingashi River is a scenic waterway in Saitama Prefecture, Japan, known for flowing through the historic castle town of Kawagoe and its popular cherry blossom viewing spots.
-
C.
Yamakuni River
The Yamakuni River is a significant river in Kyushu, Japan, flowing through Ōita Prefecture and influencing the development and landscape of cities such as Nakatsu.
-
D.
Shinmachi River
The Shinmachi River is a central waterway flowing through Tokushima City in Japan, known for its riverside promenades, sightseeing cruises, and role in local festivals.
-
E.
Osuga River
The Osuga River is a watercourse in Russia that flows through the Tver Oblast region, passing near the village of Pryamukhino.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| associatedWith |
Ehime Prefecture water resources
ⓘ
Matsuyama urban area ⓘ
linked to:
Matsuyama city urban area
|
| continent | Asia ⓘ |
| country | Japan ⓘ |
| drainageBasinLocatedIn | Ehime Prefecture NERFINISHED ⓘ |
| flowsThrough |
Matsuyama, Ehime
ⓘ
linked to:
Matsuyama, Ehime, Japan
|
| hasFunction |
freshwater source for local communities
ⓘ
supports local agriculture ⓘ supports local ecosystems ⓘ |
| hasJapaneseName | 重信川 ⓘ |
| hasRole |
important element of Matsuyama landscape
ⓘ
important water supply for Matsuyama ⓘ major river of Ehime Prefecture ⓘ |
| languageOfName | Japanese ⓘ |
| locatedIn |
Ehime Prefecture
NERFINISHED
ⓘ
Japan ⓘ Matsuyama, Ehime ⓘ
linked to:
Matsuyama, Ehime, Japan
|
| locatedInTimeZone | Japan Standard Time ⓘ |
| locatedOn |
Shikoku Island
ⓘ
linked to:
Shikoku
|
| near | Seto Inland Sea ⓘ |
| partOf |
river systems of Japan
ⓘ
river systems of Shikoku ⓘ |
| region | Shikoku ⓘ |
| usedFor |
agriculture
ⓘ
domestic water use ⓘ irrigation ⓘ water supply ⓘ |
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: Shigenobu River Description of subject: Shigenobu River is a major river in Ehime Prefecture on Japan’s Shikoku Island, flowing through the city of Matsuyama and playing an important role in its landscape and water supply.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.