Sagami River
E688501
The Sagami River is a major river in central Japan that flows through Yamanashi and Kanagawa Prefectures before reaching the Pacific Ocean.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sagami River canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7161626 — 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: Sagami River Context triple: [Sagami Bay, drainsFrom, Sagami River]
-
A.
Shinano River
The Shinano River is Japan’s longest river, flowing through central Honshu before emptying into the Sea of Japan.
-
B.
Tokachi River
The Tokachi River is a major river in Hokkaido, Japan, known for flowing through the Tokachi Plain and supporting regional agriculture and settlements.
-
C.
Kamogawa River
The Kamogawa River is a prominent river flowing through Kyoto, Japan, known for its scenic banks lined with traditional teahouses, restaurants, and popular walking paths.
-
D.
Mukogawa River
The Mukogawa River is a prominent river in Japan’s Hyōgo Prefecture that flows through cities such as Nishinomiya before emptying into Osaka Bay.
-
E.
Yamato River
The Yamato River is a major river in Japan’s Kansai region that flows through Nara and Osaka Prefectures before emptying into Osaka Bay.
- 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: Sagami River Target entity description: The Sagami River is a major river in central Japan that flows through Yamanashi and Kanagawa Prefectures before reaching the Pacific Ocean.
-
A.
Shinano River
The Shinano River is Japan’s longest river, flowing through central Honshu before emptying into the Sea of Japan.
-
B.
Tokachi River
The Tokachi River is a major river in Hokkaido, Japan, known for flowing through the Tokachi Plain and supporting regional agriculture and settlements.
-
C.
Kamogawa River
The Kamogawa River is a prominent river flowing through Kyoto, Japan, known for its scenic banks lined with traditional teahouses, restaurants, and popular walking paths.
-
D.
Mukogawa River
The Mukogawa River is a prominent river in Japan’s Hyōgo Prefecture that flows through cities such as Nishinomiya before emptying into Osaka Bay.
-
E.
Yamato River
The Yamato River is a major river in Japan’s Kansai region that flows through Nara and Osaka Prefectures before emptying into Osaka Bay.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
geographical feature
ⓘ
river ⓘ |
| alsoKnownAs | Sagamigawa NERFINISHED ⓘ |
| associatedWith |
Kanagawa Prefecture water supply
ⓘ
Sagami Bay NERFINISHED ⓘ Sagamihara City NERFINISHED ⓘ |
| basinCountry | Japan NERFINISHED ⓘ |
| continent | Asia ⓘ |
| country | Japan ⓘ |
| crosses |
Kanagawa Prefecture
NERFINISHED
ⓘ
Yamanashi Prefecture NERFINISHED ⓘ |
| drainageBasin | Sagami River basin ⓘ |
| emptiesInto |
Pacific Ocean
NERFINISHED
ⓘ
Sagami Bay NERFINISHED ⓘ |
| flowsInto | Pacific Ocean NERFINISHED ⓘ |
| flowsNear |
Atsugi
NERFINISHED
ⓘ
Chigasaki NERFINISHED ⓘ Hiratsuka NERFINISHED ⓘ Sagamihara NERFINISHED ⓘ |
| flowsThrough |
Kanagawa Prefecture
NERFINISHED
ⓘ
Yamanashi Prefecture NERFINISHED ⓘ |
| hasInfrastructure |
Miyagase Dam
NERFINISHED
ⓘ
Sagami Dam NERFINISHED ⓘ Shiroyama Dam NERFINISHED ⓘ |
| hasTributary |
Doshi River
NERFINISHED
ⓘ
Nakatsu River NERFINISHED ⓘ Sakawa River NERFINISHED ⓘ |
| languageOfName | Japanese ⓘ |
| locatedIn |
Honshu
ⓘ
Kanagawa Prefecture NERFINISHED ⓘ Yamanashi Prefecture NERFINISHED ⓘ |
| locatedInTimeZone | Japan Standard Time ⓘ |
| majorRiverOf | central Japan ⓘ |
| mouthLocation |
Pacific Ocean
NERFINISHED
ⓘ
Sagami Bay NERFINISHED ⓘ |
| partOf | Japanese river network ⓘ |
| region | Kantō region ⓘ |
| riverSystem | Sagami River system ⓘ |
| sourceLocation |
Yamanashi Prefecture
NERFINISHED
ⓘ
mountainous area of Yamanashi Prefecture ⓘ |
| usedFor |
hydroelectric power generation
ⓘ
irrigation ⓘ recreation ⓘ 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: Sagami River Description of subject: The Sagami River is a major river in central Japan that flows through Yamanashi and Kanagawa Prefectures before reaching the Pacific Ocean.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.